Shower Filter

The essential health and beauty product.

AQ-4125 shower water filter replacement

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Select a shower head option: - no Shower Head
  • Shower filter with head
  • Shower filter without head
  • Shower filter with white wand
  • Shower filter with chrome wand
Shower Filter - No Shower Head is rated 4.6 out of 5 by 1189.
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$5499 SELECT SHOWER FILTERS until Apr 30
  • MSRP: 79.99
  • Sale: 54.99

Save 50% + free shipping with Water for Life $39.99

Questions? We can help

  • 866-662-6885
  • SAT: 9AM–5PM CDT

Whole Health

Feel the Difference

Reduce your skin's exposure to harsh chlorine and synthetic chemicals that can cause skin damage and excessive drying.

Shower in Aquasana filtered water for noticeably softer, more moisturized skin.

Whole Health

Stronger, Healthier Hair

One of the most important things you can do for hair is to wash it with filtered, chlorine-free water. Your hair will be noticeably softer and shinier, your scalp will be healthier and your color will stay true and last longer.

— River Lloyd, celebrity stylist of the
John Frieda Salon in New York

Whole Health

Ultimate Versatility

Choose from our premium massaging shower head or premium massaging handheld wand for multiple massage settings to customize your shower experience.

The Aquasana Shower Filter also works with most 2.5 GPM shower heads so you can keep your own shower head.

Pure Performance

Patented copper/zinc media and coconut shell carbon

Natural coconut shell carbon filters out chlorine and other harsh chemicals, while copper/zinc media further reduces chlorine and enhances water pH balance.

The Aquasana shower filter improves air quality, enhances water pH and removes over 90% of chlorine for the healthiest shower experience.

Please see our Performance Data Sheet for complete test results.

Pure Performance

Easy Installation

Attaches easily to shower pipe.

Long lasting filters only need to be replaced twice a year.

Pure Performance

Superior Design

Aquasana's unique upflow design prevents media channeling and clogging, retains shower head height and water pressure, and increases water contact time with media for superior filtration and unmatched results.

Pure Performance


Naturally enhance your bath products and hair treatments. Use less shampoo, conditioner, soap and body lotions.

How It Works

Shower Filter

Removes over 90% of chlorine in shower water

  • 10,000 gallons
  • 6 month filter life
  • 1 year warranty
  • 90 day guarantee
See How It Works
certified by NSF

NSF Certified Media

Certified to Standards 42
and 61

AquaSorb™ HX coconut shell carbon reduces chlorine and synthetic chemicals

KDF 55 PROCESS MEDIA copper/zinc blend further reduces chlorine and enhances pH

Easy to install, replace and maintain

Help & Support

Video Help

  • How to install the shower water filter
  • How to replace the AQ-4105 shower filters

Installing the shower water filter

Replacing the filter in the AQ-4100

Learn More

Read the Reviews

Rated 5 out of 5 by from The chloramine problem It's great now that we learned to ask for the chloramine filter option. You need to find out what's in your tap water. It they add BOTH chlorine AND ammonia, that makes chloramine and it is harder to filter out than either would be alone. Look it up. I'm glad I did.
Date published: 2018-04-17
Rated 5 out of 5 by from Great Investment I happen to be on city water they put all kinds of chemicals in most city water, and my hair allways seems to feel like wire But Now since i installed the shower filter my hair is soft and easy to brush and has a shine to it again, this is one of the best investments you can do for the money it works GREAT !!
Date published: 2018-04-13
Rated 5 out of 5 by from Unit performs above expectations Unit was easy to install and produces great quality water.
Date published: 2018-04-10
Rated 5 out of 5 by from Love the pressure Love the pressure and it works great. Thrilled I made the purchase!
Date published: 2018-04-10
Rated 5 out of 5 by from Great difference inhow hair and skin feels! My husband and I love the filter! We noticed a difference in how our hair and skin felt immediately. Also, we have a lot of chlorine in our water; you could smell it! I have bad asthma, and noticed I can breathe easier in the steamy shower. The customer service is excellent. We wish we had goiter this a long time ago!
Date published: 2018-04-09
Rated 5 out of 5 by from Great filter I bought this 6 montjs sgo and then i ordered another one.. BUT i ordered the wrong number and i got the filter with the shower hesd.. So i took the filter and instaled it.. Now i ordered another filter to give the shower head and filter to a friend.. i hope they will like your product..
Date published: 2018-04-09
Rated 5 out of 5 by from Great filter I washed my hair a couple of times and it looked like hay. As soon as I washed it in the shower using your filter I saw immediate results. Our water has so much chlorine in it that you can smell it. I’ll never be without my Aquasana shower filter again!!
Date published: 2018-04-06
Rated 5 out of 5 by from Great purchaae I bought the aquasana filter and shower head because I was tired of my kids and I smelling the harsh chlorine every time we took a shower. Our skin was dry as well. Especially in the winter months. So pleased that i bought this filter. The price was reasonable, the installation was simple and the results are amazing.
Date published: 2018-04-04
Rated 5 out of 5 by from Clean shower water! The first time you use this shower filter your skin will feel much better because the film of residue from body washes and soap is completely rinsed off. I thought this residual film was just an oil or some ingredient that just remained but it's not so.
Date published: 2018-04-03
Rated 5 out of 5 by from Perfect everyone in Mexico needs this I am constantly traveling to Mexico and I've noticed a great difference on the water quality in Mexico and in the US. During my travels to Mexico my skin was exposed constantly to hard water chlorine and smelly water. My skin completion changed and my skin would dry up to the point it would bleed. I found this filter online and dude it changed my life. I bought it in March 2018 and it's the 1st week of April and I already feel the change. I love it. Do you guys have any products as simple as this one that I can use for the tap water in the kitchen and bathroom handsink?
Date published: 2018-04-03
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Learn More

Aquasana FAQs

  1. Do I have to pay for a plumber to install the system?

    Aquasana shower systems are very easy to install, and you can do it yourself in minutes. No plumber is necessary. If you have any questions or need assistance, our technical support representatives at 866-662-6885 can walk you through the installation process.

  2. What is the flow rate of the AQ-4100, AQ-4100NSH, & AQ-4105?

    The optimum flow rate for the filter and shower head is 2.5 gallons per minute.

  3. Can I use my own shower head or hand-held wand with the AQ-4100?

    Yes, you can use your own shower head. The AQ-4100NSH is the correct model for individuals using their own shower head. Just remember the shower head needs to have the same 1/2 inch connection as standard shower heads and the ideal flow rate would be 2.5 gallons per minute. If your shower head processes more than a 2.5 gallon flow rate per minute, the quality of filtration may degrade slightly. Increasing the flow rate by changing the shower head reduces contact time with the media and will reduce the filtration quality. If you decrease the flow rate of the system by using a different shower head, or use a shower head with a shut-off switch, you may cause damage to the system and void your warranty.

  4. Can I use the shower system for drinking water?

    Drinking some of the water during your shower poses no health risk. However, Aquasana does not recommend that you use the shower system as a primary drinking water source since it is not designed as a drinking system and has only been tested under shower conditions and regulations.

  5. Can I hook the shower system up under a constant pressure application?

    No, the shower system is designed to allow the water to consistently pass through the system as it filters. If the system is under constant pressure and unable to release the pressure introduced into the system during filtration, damage can occur to the unit.

  6. How do I know if the Aquasana shower system will fit the shower pipe coming out of my wall?

    Most shower connections are 1/2 inch, which means that the Aquasana shower systems will fit the shower pipe in most homes.

  7. How much chlorine does the shower system remove?

    Aquasana shower systems are tested to remove 91% chlorine for 10,000 gallons.

  8. How do I know how many showers it takes to use 10,000 gallons?

    10,000 gallons at 2 1/2 gallons per minute = 4,000 minutes of showering
    - You can take 400 10-minute showers
    - You can take 267 15-minute showers

Learn More

User Q & A

I noticed the last few times I've turned my water on, the water looks brown-ish when it hits the shower floor. Could it be that it is nearing time to replace my filter? The filter is not quite 6 months old yet (about 5 months); water pressure fine still

Asked by: ToniK
Sounds like your filter needs to be changed!  The 6 months is a suggestion, you made the decision.  Depending on your water source depends to the length of time. When we lived in a city, the filter was changed every 6 months. We moved to the county and used the shower filters, changing often until we had the whole house filter installed! Hope this helps!
Answered by: brightshoe
Date published: 2018-04-23

Does it take out fluoride?

Asked by: Jonas
No, it’s good though   .
Answered by: Sure
Date published: 2018-04-22

After installing just the filter and replacing my own hand shower I notice the water current becomes weak very significantly. What should I do to improve the slow and weak water current?

Asked by: Melissa_ns
Did you flush the filter properly following the instructions?
Answered by: Mjones5970
Date published: 2018-04-13

Does the shower filter remove CHLORAMINE (as opposed to chlorine)?

Asked by: Ablesq
We do have a chloramine shower filter that can be sent out by special request. Just give us a call at 866.662.6885 and we can help you place the order. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-04-05

Is the shower head adjustable

Asked by: Shan17
Yes. You can adjust the spray and position of the head.
Answered by: ElliotG
Date published: 2018-03-31

I have well water and the smell that goes along with that (rotten egg smell). The water is also very "hard". Will this filter eliminate that or is it just for chlorine?

Asked by: robin28348
it didn't even remove chlorine
Answered by: Slava
Date published: 2018-03-23

Does this come with filter

Asked by: Yvette
Yes it does. Tha filter then needs to be replaced every six months. 
Answered by: Mtnwmn
Date published: 2018-02-24

How do you know when to replace filter?

Asked by: diane66
Minimum 6 months usage. Filter will start to clog with sediment and other things, this will reduce flow rate. So if reduced flow is noticed or at the very least twice a year.
Answered by: Mjones5970
Date published: 2018-02-22
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