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Internet #204406527

Model #THD-4100NSH

Premium Shower Filter without Shower Head

  • Filter designed to fit most standard showerheads
  • Long filter life of 6 months or 10,000 Gal.
  • Backed by a 1-year limited manufacturer warranty
  • See More Details

Frequently Bought Together


Product Overview

Get softer skin, shinier hair and cleaner air with the Aquasana Premium Shower Filter. It enhances pH balance and removes over 90% of the chlorine in your shower water that can cause dry, itchy skin and brittle, lifeless hair. Chlorine can strip your skin and hair of their natural protective oils, and showering in Aquasana filtered water restores your body’s natural protective oils for noticeably healthier hair and skin. In addition, the Premium Shower Filter reduces synthetic chemicals that can evaporate out of your shower water and contaminate the air you breathe.
  • Dual-stage up-flow filter design provides superb shower filtration
  • Removes over 90% of chlorine for softer skin and shinier, healthier hair
  • Reduces synthetic chemicals for improved air quality
  • Enhances pH balance for overall shower purity
  • First stage collects zinc and copper media, filters chlorine and enhances pH
  • In the second stage, coconut shell carbon filters synthetic chemicals
  • 2.5 GPM flow rate
  • Easy to install, replace and maintain
  • Maximum water temperature 115°F
  • Showerhead not included; filter designed to fit most standard showerheads

Info & Guides

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Number of filters included 111
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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Brand/Model Compatibility
No additional features
Filtration Method
Number of filters included
Pack Size
Product Weight (lb.)
Replacement Filter Type
Shower Head Replacement Filters
Water Filtration System Type
Shower Head

Warranty / Certifications

Manufacturer Warranty
90 guarantee, 1 year limited

Questions & Answers


is it the filter water that is leaking from around the cartridge and the top housing? i want to make sure i am not wasting the filtered water. not sure how to fix the water leakage. its brand new and cartridge is tightly fixed to the top housing.

Asked by April09 October 12, 2020

Hello, Thank you for reaching out! We would love to transfer this to a team specialist who is best-suited to answer any questions or concerns you may have.   Kindly email us directly at support@aquasana.com or contact us directly at 866-662-6885, Monday thru Friday from 8am-6pm CST, and weekends from 9am-5pm CST.   Thank you,   Aquasana Support  

How to stop water leakage from around the seam between the upper filter housing and the cartridge? I did not open the cartridge from the housing, it is bran new. i tested and the cartridge is tightly attahed to the top housing. not able to rotate it anym

Asked by April09 October 12, 2020

I have not had this problem. I would call the company it sounds defective.

What size microns does this remove? There is a lot of concern about brain eating amoeba in the news.

Asked by Juliez September 13, 2020

Most amoeba are 250 to 750 microns in size. N. fowleri is microscopic: 8 micrometers to 1 5 micrometers in size, depending on its life stage and environment. By comparison, a hair is 40 to 50 micrometers wide.

Would this filter fit a Grohe hand-held shower hose?

Asked by austintp July 26, 2020

Yes it does absolutely!!

How much chloramine does the shower filter remove?

Asked by Calvin7 July 21, 2020

ANSI report says 98%. You will definitely feel a difference on your skin and eyes.

I have chloramine in my water. Will this shower filter work? Thanks.

Asked by Sharlene July 20, 2020

Hello, 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 Support

1. Can this filter out Chromium?

Asked by April09 June 30, 2020

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 https://cdn.aquasana.com/assets/660-UL-FAC-R1.pdf?_ga=2.67470168.892321620.1593695331-773233525.1590676156 If you have any further question please contact us at 866-662-6885. Thank you, Aquasana Customer Support

Can you use hot water with this filter?

Asked by Edna June 24, 2020

Yes, limit temperature to no more than 120 degrees. Any hotter would burn your skin anyway.

For the no shower head shower filter, do you have another style that the chrome ring is on the other side? My shower head does not have the ring that can’t be fit the shower filter of the display image. Also what does water for life discount mean?

Asked by Kit Zeng June 3, 2020

If you don't have a standard shower head you will need to have an adapter fitted to make it standard. If you don't know how, hire a plumber. Most showers have this standard hookup. Water for life discounts each shipment of filters so one, you always have the replacement in time to change it and get a better price per shipment.

Does filter remove sulfur smell?

Asked by Sulfursmell February 12, 2020

Yes! I was diagnosed with sulfur intolerance so showering with this filter prevents itchy rashes. I thought it might be a placebo effect but when I showered in another person's shower with no filter for several days, I started getting rashes again.

Premium Shower Filter without Shower Head - page 2

Customer Reviews

  • 4.5
    out of 98 reviews
  • 88% recommend this product
Filter by:
Showing 1-10 of 98 reviews
outstanding Product
after years of hard water showers, I now enjoy not having super dry skin. My new filter works as advertised. no more itchy skin!
by 1Ken
Unfortunately after installing, the collar leaks below the shower connection pipe. No leaking anywhere else (at shower head connection nor at pipe source connection). Defect in manufacture. Perhaps got a lemon.
by Someone
Filter works very well.
Filter works great. Makes my skin feel even better than a cheaper filter I had been using. Only issue is difficulty fitting my existing shower sprayer wand to fit properly with the filter neck. I ended up having to adjust the filter almost sideways but it seems to work fine.
by Bob in Florida
Great But
The filter was a breeze to install. I was able to use my low flow existing shower head. As far as being an effective filter, my girlfriend thanks me every day. She continuously states that her hair has never been better and moisturized. For me, I have not had to use conditioner at all since installing the filter and my hair softer than ever.
by Craig.R
Shower Filter
The filter is big & heavy to the point it tore the holder from the wall. It's amazing that with the technology we have today it has not been re-generated smaller & less heay
by Large Shower Filter
A definite improvement on our water
The filter is definitely helping. Our water is very hard with a lot of chlorine. My long hair is usually very dry and our family gets dry skin. Within a few days of using the filter, we noticed a difference in our skin, and my hair is so much softer. My only complaint is minor, it takes some time for the water to flow through so you just have to be mindful and give a few extra seconds for the warm water to come through.
by JLo3
Very easy to assemble. Works great. I can tell a big difference. My skin and hair are softer. ...
Very easy to assemble. Works great. I can tell a big difference. My skin and hair are softer. And I know my water is cleaner.
by Rhonda
Easy to Install,odor free water.
I just need to put two rubber rings inside the connection to the pipe.
by Bettyboop
Healthy skn
Easy installation. Filtered water healthy for my skin. Skin softer, not dry
by Healthy skin
Precisely manufactured and easy for installation
Easy installation is the key which I think is due to precision manufacturing process. Particularly, no leak with normal torque to turn tight. I suggest that a "window" or "indicator" is designed with the shower filter body such that user can see how much the filter has been used. This is just like the beeping sound in the drinking faucet water to alert user to have replacement. Saying 6 month of life time is too rough for this shower filter. Auqusana shouldn't count on a user to remember the length of filter use. It should be another innovative way to do this and also as a competitive marketing approach.
by jcyc
Showing 1-10 of 98 reviews