In A Rush? Here's our winner
Taking a long and hot shower should make rested, relaxed and completely at ease, but depending on lifestyle factors and the type of water you have, you might actually dread taking a shower.
Installing a shower filter can soften hard water, reduce the impact that well water has on your skin and reduce your loss of hair.
As shower filters are so different, we narrowed down your top choices to just four categories. You can find the best shower filters for use with well water or hard water, the top Vitamin C shower filters and even filters for hair loss. Use our how to choose the best shower filter guidelines to guide your own search.
Top Picks for Hard Water
|1||Culligan WSH-C125 Wall-Mounted Filtered ||9.9||Buy on Amazon|
|2||Aquasana AQ-4100 Deluxe Shower Water Filter ||9.7||Buy on Amazon|
|3||AquaBliss High Output Universal Shower Filter ||9.6||Buy on Amazon|
|4||CaptainEco 5-Stage Shower Filter ||9.1||Buy on Amazon|
|5||Sakaika 3" High Pressure Shower Head ||9||Buy on Amazon|
|6||High Output Shower Water Filter ||8.8||Buy on Amazon|
Top Picks for Vitamin C
|1||Vitamin C Filter Inline ||9.6||Buy on Amazon|
|2||UBS Vfs-f+vcf-05 Luxury Vita Fresh ||9.4||Buy on Amazon|
|3||VitaPure Vitamin C Shower Filter||9.3||Buy on Amazon|
|4||UBS Vita Fresh Shower Filter||9.2||Buy on Amazon|
|5||HotelSpa Fusion Vitamin C Chlorine ||9||Buy on Amazon|
|6||Hand-Held SONAKI High Quality Vitamin C ||8.6||Buy on Amazon|
Top Picks for Well Water
|1||Jonathan Product Beauty Hard Water ||9.8||Buy on Amazon|
|2||HotelSpa Ultra-Luxury 3-in-1 Shower Gift Set||9.6||Buy on Amazon|
|3||Nano-Silver Shower Filter by Marrinn||9||Buy on Amazon|
|4||Culligan RDSH-C115 RainDisc Filtered ||8.8||Buy on Amazon|
|5||QwenchPure Shower Head Water Filter||8.6||Buy on Amazon|
|6||AquaCare by HotelSpa 1138 Advanced ||8.5||Buy on Amazon|
Top Picks for Hair Loss
|1||Vitamin C Massage Shower Head ||9||Buy on Amazon|
|2||Vitamin C Hand-Held Lotus Shower Head ||8.9||Buy on Amazon|
|3||DSIKER® Rejuvenate Filtered Shower Head ||8.7||Buy on Amazon|
|4||i-Mate Tri-Function 30% Water Saving ||8.6||Buy on Amazon|
|5||Filtered Hand-Held Shower Head ||8.4||Buy on Amazon|
|6||PretiHom Ionic Filter Hand-Held ||8.3||Buy on Amazon|
- Top 23+ Best Shower Filters Reviews For 2019
- 1. Culligan WSH-C125 Wall-Mounted Filtered Shower Head
- 2. Aquasana AQ-4100 Deluxe Shower Water Filter System
- 3. AquaBliss High Output Universal Shower Filter
- 4. Captain Eco Shower Filter with 2 Cartridges + Shower Curtain
- 5. Sakaika Shower Head Chlorine Filter & Hard Water Softener
- 6. Shower Water Filter with 2 Cartridges 8-Stage
- 7. Sonaki Vitamin C Filter Inline Shower
- 8. UBS Vfs-f+vcf-05 Luxury Vita-fresh Shower Filter
- 9. VitaPure Vitamin C Inline Shower Filter
- 10. UBS Vitafresh Shower Filter Original Classic
- 11. HotelSpa Fusion Vitamin C Chlorine Removing ShowerHead
- 12. Handheld Vitamin C Vaio Spray Volume Shower Head Set
- 13. Jonathan Product Beauty Hard Water Shower Filter System
- 14. HotelSpa Ultra-Luxury 3-in-1 Shower Gift Set
- 15. MARRINN Nano-Silver Shower Filter
- 16. Culligan RDSH-C115 RainDisc Filtered Shower Head
- 17. QwenchPure Shower Filter
- 18. Hotel Spa Advanced High Intensity Super Compact Universal Shower Filter
- 19. Sonaki Vitamin C Massage Shower Head With Water Filter
- 20. Sonaki Vitamin C Handheld Lotus Shower Head With Water Filter
- 21. DSIKER® Rejuvenate Skin and Your Hair Loss Prevention Filtered Shower Head System
- 22. i-Mate Tri-Function 30% Water Saving Shower Head Plus Ionic Filter
- 23. Bath & Relax Filtered Hand Held Shower Head Filtration System
- 24. PretiHom Ionic Filter Water Saving Ionic Handheld Showerhead
- Final Verdict
- How to Choose the Shower Filter For Hard Water, Vitamin C, Well Water and Hair Loss
Top 23+ Best Shower Filters Reviews For 2019
Culligan makes this WSH-C125 Wall-Mounted Filter Shower Head with Massage for those who deal with hard water daily. Designed for mounting right on the wall of any shower, it functions as both a filter and a shower head because of the built-in filter inside. It comes in a chrome finish that fits all styles of bathrooms and will work with any bathroom hardware.
Certified as an EPA Water Sense product, this faucet uses just two gallons or less of water per minute and comes with five different spray settings that you can use for daily showers. The filter removes many of the common impurities found in hard water supplies, including chlorine, and sulfur, and the filter can last for up to six months or 10,000 gallons of water. It also has antibacterial properties that kill bacteria in your water supply while also eliminating any of the sulfur and other odors in the water.
Our best shower filter for hard water
Coconut shells, activated carbon and other dependable materials work together in this shower head filter to remove all the toxins and impurities that wreak havoc on your skin, nails and hair. The Aquasana AQ-4100 Deluxe Shower Water Filter System with Adjustable Shower Head installs quickly and works with all universal plumbing fixtures and pipes, and you can use it with your existing shower head or with the included head. That head has different settings for those who prefer more or less water pressure.
Capable of removing more than 90% of the chlorine in your water, this filter will leave you with softer skin and silkier hair. Each of its multiple layers work together to enhance and improve the pH balance to make your hard water feel softer, and it can send out up to 2.5 gallons of purer and fresher water every minute that you use it in your shower.
Using the AquaBliss High Output Universal Shower Filter with Replaceable Multi-Stage Filter Cartridge will make you feel a little more blissful each time you climb inside the shower and stand under the water. Its screw-on design lets you attach it to any type of shower head, and it will even work with hand-held shower heads. As it removes many of the common chemicals and toxins found in hard water, you may find that it leaves you feeling softer and more refreshed.
The filter cartridge inside comes out easily when you need a replacement, and this filter uses a combination of KDF 55, activated carbon and other materials that remove up to 90% or more of common toxins when used with both cold and hot water. The impurities that it removes are those that cause scale build up and mold growth, which means that you can significantly cut back on your bathroom cleaning time too.
CaptainEco created this 5-stage shower filter with 2 replacement cartridges for anyone who wants to eliminate the problems associated with hard water. It looks like a small bulb, but it screws onto the end of your shower head and fits between that head and the pipe. Water enters the filter and goes through five different stages of rapid filtration before it ever touches your skin or hair. Those filtration levels can soften your water up to two times as other filters can.
A KDF 55 filter works with ceramic balls that use activated carbon, calcium and other ingredients to remove more of the chlorine, calcium and other impurities from the water and to prevent scale from building up on your shower head and in the shower itself. This shower filter can reduce dandruff outbreaks, improve the look of your skin, make your nails stronger and help with some respiratory conditions.
Whether you have hard water or well water, you can enjoy cleaner and better water with this Sakaika 3” High Pressure Shower Head w/ Chlorine Filter & Hard Water Softener. That water softener reduces the level of calcium and other ingredients in the water that dry out your skin, fry your hair and nails and leave you feeling grimy when you hop out of the shower. Using this filter in your shower will reduce the amount of products like shampoo and body wash that you use too.
The manufacturer guarantees that the filter can remove up to 99.9% of the potentially harmful ingredients found in hard water, including lead, iron, calcium, chlorine and magnesium. It fits all standard plumbing fixtures and installs quickly without the use of any tools. This filter will last for up to eight months or up to a maximum of 12,000 gallons of water usage.
One of the most affordable options for those dealing with hard water is this High Output Shower Water Filter with Replaceable Filter Cartridge, which is good for those who like more water pressure. It uses four stages of filtration that to remove heavy metals, chemicals and other potentially hazardous ingredients from your city water supply. The water actually moves through layers made of materials like activated carbon, KDF and similar materials before it reaches you.
As a universal filter, this filter will install on any shower head without requiring a lot of tools or steps, and it even comes with optional seal tape that you can use to seal the filter in place to prevent leaks. Depending on how often you shower, the filter can last for up to nine months, but you’ll want to replace it after 10,000 gallons. It’s safe for babies, pets and even the elderly to use.
Installing this Vitamin C Filter Inline Shower Assembly by SONAKI in your shower can remove more of the toxins than almost any other model because the manufacturer claims it will eliminate up to 99.9% of chlorine and similar compounds from any water source. Though it uses the same Vitamin C as other models, it features an impressive system that lets the water move around the filtration unit to get as many of the toxins out as possible. The manufacturer also gives you three replacement filter cartridges with each order as well as a wrench for swapping out filters.
The assembly has a universal adapter that you screw right onto the end of your shower pipe before screwing your shower head into the filter unit, and the whole process should take just 30 minutes or less. Vitamin C used inside the filter neutralizes chlorine while killing other contaminants.
Our best Vitamin C shower filter winner. Here’s why…
Chlorine and similar hazards found in most water supplies can wreak havoc on your body, but the Vitamin C Filter Inline Shower Assembly by SONAKI can completely reduce the damage that those hazards did to you and others in your household. This assembly comes with everything you need for installing it, including a wrench that helps you more easily change out the filter, and it even has universal joints that can attach to any shower head and any type of shower pipe. Each filter can weed out chlorine and other toxins in up to 3,000 gallons of water, and you get three filters with the set.
That Vitamin C neutralizes the damage that chlorine does to hair and skin while also making your shower water safer to drink and to inhale. A resin case surrounding the filter helps you track the look of the filter, which will let you know when it needs replacing.
Give your shower water a more pleasant taste, smell and feel with this UBS Vfs-f+vcf-05 Luxury Vita Fresh Shower Filter, which will give your shower the feel of those salons and spas that offer Vitamin C showers for guests. This filter has a fairly straightforward design that looks like a large “T,” with a universal joint one end that you screw into your plumbing fixture and a second adapter on the opposite end that supports your shower head. As it weighs less and has a compact design, this filter will work with a hand-held shower head too.
The Vitamin C used in the filter material absorbs some of the odors in your water and also neutralizes chlorine and similar contaminants. As this is a pharmaceutical-grade Vitamin C, you can safely inhale and ingest your water. Removing those hazards will leave you with thicker hair and soften skin each time you shower.
Whether you have a wall-mounted or hand-held shower head, you can install this VitaPure Vitamin C Shower Filter to see how that simple vitamin can improve your skin, hair and nails. As it has universal adapter joints on both ends, you can even use it on a combo shower unit, and it installs quickly without the use of your toolbox. This filter uses modern technology to remove chlorine and other impurities while softening hard water at the same time.
Designed for those who have sensitive skin, this filter can also assist those battling skin or hair conditions like dandruff and eczema, but it’s so mild that you can use it on your children and pets too. You can use this with any type of water source and at any pressure setting, and it will even work with colder and hotter water. VitaPure guarantees that the filter will remove 99.9% of common toxins.
This UBS Vita Fresh Shower Filter uses Vitamin C to remove chlorine and other contaminants from your water that might give your skin a dry texture and cause damage to your hair. UBS uses a pharmaceutical-grade Vitamin C that is safe to ingest, meaning that you won’t get sick if you swallow water while in the shower. It neutralizes any of the chlorine or similar impurities that it encounters in the water.
Though the filter comes with 16-ounces of Vitamin C, it can last for up to 10,000 liters of water, giving you and your family hours of filtration as you shower. The cartridge inside is easy to replace, and it comes with built-in features that tell you when you need to replace it. This is a good option for many homes because it installs easily on both wall-mounted shower heads as well as with hand-held shower heads.
Turn your master bathroom into the ultimate spa experience with this HotelSpa Fusion Vitamin C Chlorine Removing Shower Head, which comes with the same features as the shower heads found in elegant hotels do. This unit completely replaces your old shower head and comes with a built-in filter. The shower head itself has seven different spray settings, including rain, pulsating and mist settings to help you feel more comfortable as you get clean.
One unique feature found on this model is a hidden reservoir that keeps water filtered and ready when you need it, which reduces the time it takes for the water to make it was through the filter and out the head. A five-foot long flexible hose attached to the head lets you direct the aim when you need it. You’ll also get a refillable cartridge filter and a one-year supply of Vitamin C powder.
With this Hand-Held SONAKI High Quality Vitamin C Vaio Spray Volume Shower Head, you can turn your shower into one of your favorite places to relax. This little shower head has a screw-on design that you can screw right into your pipe after taking off your old shower head, but that simple design also lets you attach this to a shower hose for getting the benefits of Vitamin C without standing right underneath the head. It comes with a built-in filter that you can remove and replace too.
The clear design of the handle helps you see that filter for yourself and see how it works as well as when it needs replaced. A switch control on the shower head lets you alternate between its three spray settings: shower, mist and stop. With an energy-efficient design, this shower head can help you reduce your water usage by up to 50%.
With this Jonathan Product Beauty Hard Water Shower Filter System installed in your shower, you might feel like you just took a dip in a natural spring when you towel off. This unique filtration system has a universal adapter on one end that screws right into your pipe after you remove your existing shower head, and it comes with its own shower head that can replace yours. This head comes with multiple spray settings that can meet the preferences of everyone in your household.
Unlike other shower filters that simply remove impurities, which can give your water an odd feel when it touches your skin, this Jonathon Product filter actually adds in some potassium ions as it strips lead and iron from your water to restore its natural pH balance. This helps it function as a water softener to make showering a more pleasant experience while also giving your water a milder odor.
Our Best Well Water Shower Filter Winner. Here’s why…
Well water can have a slightly unpleasant smell and feature lots of harmful contaminants that come from the surrounding ground water that leeches into you well, but we recommend the Jonathan Product Beauty Hard Water Shower Filter System for those who want to cut back on the bad side of well water. This is a complete filtration system that has a large tank with an attached shower head. When installed, water comes through the pipes, moves through several layers of filtration and then comes out the shower head. That head twists in two different ways to change the spray setting.
Though it removes lead, copper and other harmful components, the shower filter actually increases the amount of potassium ions found in the water at the same time to balance pH levels. As it can remove many of the synthetic chemicals that well water has, it produces water that tastes and feels like spring water.
Give your entire household the gift of clean and pure water with this Ultra-Luxury 3-in-2 Shower Gift Set from HotelSpa that includes a combo set that has both a wall-mounted and a hand-held shower head. It also comes with its own filter, which makes it a great choice for those looking to renovate their bathrooms. Instead of removing your old shower head, installing the filter and then putting the old head back in place, you can replace that head with this set that installs almost as easily. You can’t beat its price either, which is lower than the cost of some individual filters.
That filter cartridge actually includes three different filtration phases to help pull heavy metals, ground contaminants and even chlorine from your water before you stand in the shower. It also comes with instructions that walk you through replacing that filter at the 10,000 gallon mark.
Well water is particularly dangerous for those with weakened immune systems, which is why we like this Nano-Silver Shower Filter by Marrinn for homes with children and/or the elderly. Contaminants found in that water can cause babies and others to feel sick or suffer from illnesses, but this filter does a good job of reducing those contaminants to make your shower water safer for every member of your family. It looks like a large canister with hook ups on each end for connecting to your pipe and shower head, and the filter uses softer shades that won’t detract from your bathroom decor.
Tested and certified for home use, the filter kills up to 99.9% of the germs that live in your well and expose you only to pure and fresh water that both tastes better and smells better. That filter can last for up to 50,000 gallons or for a full year of use.
If you need a shower filter but dislike the look of separate filters that detract from the style of your bathroom, you might like the Culligan RDSG-C115 RainDisc Filtered Shower Head that comes with a built-in filter inside. This shower head has a much larger circumference and actually functions like a rain shower head to make you feel like you’re in the middle of a storm while in your shower. Its EPA Water Sense certification ensures that it will not use more than 2.5 gallons in a middle, which can help you lower your family’s water bills.
A WHR-140 water filtration cartridge comes with the unit and slips inside to remove chlorine and other contaminants found in well water. That filter also removes the sulfuric odor associated with well water and reduces calcium and lime build up in your shower. Culligan guarantees the filter will last for up to 10,000 gallons or six months or use.
The QwenchPure Shower Head Water Filter can end all the symptoms of well water that you deal with daily, including skin that feels itchy or dry and hair that appears dry and brittle. Well water often picks up contaminants from the nearby ground, but this water filter actually removes some of those contaminants and also softens the water to help you feel better and cleaner after a shower. It does not use activated carbon or other materials that do not work effectively with well water and instead uses KDF 55 that also neutralizes any chlorine in the water.
This filter features a design that lets it fit with any type of shower head, including compact hand-held heads and larger rain shower heads. It is effective at battling the mold spores, heavy metals and algae that may come through your shower head, which reduces scale build up and mold outbreaks in the shower.
Make well water the last thing on your mind with the installation of this AquaCare by HotelSpa 1138 Advanced High Intensity Super Compact Universal Shower Filter, which uses three separate stages to remove as many of those heavy metals and ground contaminants as possible from your well water. It has a much smaller and more compact shape to help you use it on either a hand-held shower head or with a wall-mounted head. Its filter lasts for up to six months of constant use, and you can replace the filter without any unique tools.
Its filtration phases include a layer of activated carbon and a separate layer of a KDF material, and those layers can remove up to 99.9% of germs and harmful materials in the water as well as hazardous materials in the steam produced by hot water. HotelSpa offers a limited lifetime warranty on the 1138 shower filter.
The best option for those looking to promote hair growth, cut back on hair loss and eliminate impurities is the Vitamin C Massage Shower Head With Water Filter By SONAKI. This amazing filter uses Vitamin C to naturally remove chlorine and other toxins that can disrupt hair growth and cause hair loss. Each filter lasts for up to 3,000 gallons and are easy to remove and replace when needed.
Though this is a low-flow model that uses up to half as much water as your old shower head, it still delivers all the great pressure that you need at the end of a rough day. Its regular setting is perfect for everyday showers, but its massage setting can target your sore muscles and help relieve some of the stress of the day. That setting can also promote healthy hair growth and stimulate your scalp to help you grow healthier and thicker hair.
Our best shower filter for hair loss. Here’s why…
Hair loss can occur because of toxins and impurities in your water that strip your hair of its natural oils, but this Vitamin C Massage Shower Head With Water Filter By SONAKI does a good job of removing those impurities. As you shower, you not only swallow water, but you can actually absorb the impurities in the water through your skin, hair and even eyes. This shower head comes with a Vitamin C filter that naturally whisks away those toxins to help you grow a full head of hair.
This shower head features both a regular setting and a massage setting that can stimulate your scalp to promote hair growth and rejuvenation. SONAKI claims it one filter can last for up to 3,000 gallons and that this is an environmentally-friendly shower head that uses less water to help you save on water bills while still delivering lots of water pressure.
Get all the gorgeous hair that you never thought was possible, or just promote regrowth of your own hair with this Vitamin C Hand-Held Lotus Shower Head With Water Filter By SONAKI. SONAKI uses a Vitamin C filter inside that removes chlorine and other materials through a natural process that lets you enjoy cleaner and fresher water. Removing those toxins also allows your natural hair to come back and keeps the toxins from clogging the pores on your scalp.
The lotus shape of the shower head features eight larger holes that allow more water to come out, which helps you more quickly eliminate dead skin and other irritants that might dry out your scalp. Certified by the EPA, this shower head and filter combo can also reduce your water bills.
Turn your bathroom into an exciting nightclub with this DSIKER® Rejuvenate Filtered Shower Head System, which comes with LED lights inside that can also help you wake up in the morning or relax more at night. As a hand-held systems, it comes with a flexible hose and all the hardware needed for installing and mounting it the shower. You can use the filter will all water temperatures and enjoy maximum results.
The manufacturers believe that DHT is one of the major reasons behind hair loss, which is why they designed this filter to soften your water and remove any DHT present to help you grow healthy hair. Three filtration layers remove chlorine and similar compounds, pesticides, rust, heavy metals and other chemicals and toxins. It also helps restore the natural pH balance of the water and removes any lingering odors.
With built-in stone and ball filters in the handle, this i-Mate Tri-Function Hand-Held Shower Head uses natural filtration methods to remove the toxins that keep your hair from growing and thriving. Two layers of bioactive stones surround the water as it moves to the head and pulls out toxins and impurities while increasing the amount of negative ions produced, which many believes promotes healthy skin and hair development. One layer forces natural minerals into the water, which your skin will then absorb.
The massage setting on the shower head will gently massage your scalp and increase its production of natural and healthy oils, but you can also use the head on a jet or rain fall setting. This head increases the flow rate of your water while cutting back on the amount of water used.
If this Filtered Hand-Held Shower Head Filtration System proves one things, it’s that you can promote hair growth without spending a lot of money. Save cash and purchase this system instead of those tonics and supplements that claim you can regrow hair in just weeks. This system comes with its own shower head that has a long and flexible tube for using it anywhere in your shower and three settings for using the head on a rainfall, jet or massage mode.
Both the jet and massage modes help stimulate your scalp, which will help cleanse your scalp of environmental hazards that can keep your hair from growing or cause bald patches to form. The unique filter removes up to 99% of chlorine and similar materials in the water that can keep healthy hair from growing, and it feature natural stones in the shower head that add negative ions to the water for added hair growth.
If you have bald patches on your scalp, notice stray hairs on your pillow in the morning or see hair coming out when you brush and style your hair, it might be time to invest in a hair loss water filter like this PretiHom Ionic Filter Hand-Held Shower Head. It features a long and thin shaft that you can comfortably get your hands around and a screw-on base that attaches to any flexible shower hose. The head itself measures three-inches wide and features a jet, massage and shower mode, and that massaging mode can massage your scalp and make you hair come back.
The water from your shower head moves through a cluster of bioactive stones that remove more than 90% of the chlorine in the water while also releasing negative ions that can improve the look of both your hair and skin.
Our final choice is also our winner for the best hard water shower filter, Culligan WSH-C125 Wall-Mounted Filter Shower Head with Massage.
This is a more advanced system when compared to some of the other top models and features that includes whr-140 filter cartridge: whr-140 filters sulfur odor, chlorine, and scale for a full 10, 000 gallons or 6 months giving softer, cleaner skin and hair. It removes more of the impurities that can weaken your hair or cause dry skin. It removes more than 90% of those impurities and improves the pH balance of your water. It also patented filter media bacteriostatic*, limits passage and growth of bacteria for a cleaner shower experience
How to Choose the Shower Filter For Hard Water, Vitamin C, Well Water and Hair Loss
Many shower filters use a carbon filter, but carbon is not usually enough to absorb all the impurities from your water supply. Those made from a combination of zinc and copper, also called KDF, is a far better choice. KDF not only removes iron, chlorine and other impurities, but it can also soften hard water.
Installing the Filter
Most of the top filters are easy to install and will only take you a few minutes, but some may require that you spend a lot of time disconnecting your water line and setting up the filter. You can read reviews of the best filters, check out the instructions or just examine the filter to see how it fits on the shower head to determine how easily you can install it.
You should also look at how long the filter will last, which tells you whether the filter is worth the investment. A good filter should last for at least six months, but you can then replace the filter itself without replacing the entire unit. The lifespan can vary based on how often you shower, the length of your showers and the type of water you have.
Hair Loss Water Filters
A hair loss water filter is one designed specifically to reduce the hair loss that users experience. It removes contaminants from the water that can weigh down your hair, strip it of its natural oils and cause hair loss.
Well Water Filters
If you live in the country or a more rural community, you might have a well that provides water for your home. Wells absorb a number of impurities from the ground water that seeps inside the well. Using a filter designed for wells will remove some of those impurities and leave you feeling cleaner after a shower.
Hard Water Filters
Hard water often comes from city or municipal sources. It has a number of contaminants and may smell bad too. Manufacturers make hard water filters that eliminate some of those impurities while improving the smell of the water at the same time.
Vitamin C Filters
One of the newer types of shower filters is one that uses Vitamin C, which can actually neutralize the chlorine found in most water supplies. The small amount of Vitamin C that reaches you can promote healthy skin and hair development too.
The efficiency output of a shower filter tells you how much water it produces and how long it can last. Looking at this number lets you know if the shower filter will produce more or less water than your current shower head produces and whether it will last for years or just a few months.
Instead of just looking at how much the shower filter costs upfront, focus on its average lifetime use. If a filter costs less upfront but adds more to your water or energy bills, you’ll wish you did much more research.