Whole House Post-filter Cartridge Replacement

The post-filter, considered a polishing agent, reduces any remaining sediment and organic particles. This cartridge should be replaced every 6-12 months.

Whole House Post-filter Cartridge Replacement is rated 4.3 out of 5 by 146.
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  • MSRP: 29.95

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This post-filter replacement cartridge can be used with Rhino Whole House Water Filters that contain a post-filter.

The post-filter reduces any remaining sediment and organic particles. The addition of this post-filter is considered a polishing agent to the filtration process. This cartridge should be replaced every 6-12 months.

Download replacement instructions here

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Read the Reviews

Rated 5 out of 5 by from Best Water Ever! I bought the whole house water system for my home and my water was delicious! Best water ever!!!
Date published: 2017-11-20
Rated 5 out of 5 by from Replacement parts First purchase since whole house filter system purchase. Quick, efficient, professional service. Received order in just a couple days. Part was what I ordered, quick replacement. Very satisfied.
Date published: 2017-11-20
Rated 5 out of 5 by from Whole house filtration system System has worked well for over 2 years and the installation was not difficult with the instructions provided.
Date published: 2017-11-11
Rated 5 out of 5 by from well water filtration sys. i am very happy with all of the products i get from you folks. the whole filtration sys. is excellent does what it is advertised to do.
Date published: 2017-11-11
Rated 5 out of 5 by from Great job! I bought the whole house system 7 years ago and installed on my public water supply. Before the filter my water had the same chlorine level as my pool so my water was awful for drinking, showering, etc. but with the filter it is perfect. My neighbors complained on facebook that the water was brown due to water main construction and I never even knew it cause my water was filtered! Well worth the cost!!!
Date published: 2017-11-02
Rated 5 out of 5 by from Great Company This company has a Great whole house system and even better customer service!
Date published: 2017-10-29
Rated 5 out of 5 by from Whole house system The key to this system is the installation. Get a good licensed professional plumber. Make sure it’s installed with the proper bi- passes, for example: watering plants or washing your car. You don’t want to use filtered water to do that. All in all, it’s a great system, my wife and I love it
Date published: 2017-10-14
Rated 5 out of 5 by from Great filters Great filters and great water You fill the it $250.00 to instant Money well spent
Date published: 2017-09-22
Rated 5 out of 5 by from Easy installation with everything you need! With the installation kit and filter, installation was a breeze. Everything worked as designed and we now enjoy healthy and good tasting water! Thank you Aquasana!!
Date published: 2017-09-21
Rated 5 out of 5 by from Easy to install Working out great, i bought with hopes it is better quality than store bought.
Date published: 2017-09-02
Rated 5 out of 5 by from Product and delivery excellent To maintain water quality...
Date published: 2017-06-26
Rated 5 out of 5 by from Would purchase this again Well Whole House Water System with UV light. Affordable and good quality.
Date published: 2017-06-25
Rated 5 out of 5 by from Great Products Part of a whole house city system
Date published: 2017-06-16
Rated 5 out of 5 by from Filtration system review Lake filtration system to house
Date published: 2017-06-08
Rated 5 out of 5 by from Replacing the filter is so simple The system works well and doesn't waste water like a salt system. The water in our area is at the hardness maximum recommended by Aquasana but the waiter is still much improved.
Date published: 2017-05-14
Rated 5 out of 5 by from Replacing the filter is so simple The system works well and doesn't waste water like a salt system. The water in our area is at the hardness maximum recommended by Aquasana but the waiter is still much improved.
Date published: 2017-05-14
Rated 5 out of 5 by from What a difference! Changing the filter in a timely manner makes all the difference to quality of my water.
Date published: 2017-05-10
Rated 5 out of 5 by from What a difference! Changing the filter in a timely manner makes all the difference to quality of my water.
Date published: 2017-05-10
Rated 5 out of 5 by from Loving our filteration system!! So happy to remove any extra chemicals and-or metals from our water!!
Date published: 2017-04-22
Rated 5 out of 5 by from Loving our filteration system!! So happy to remove any extra chemicals and/or metals from our water!!
Date published: 2017-04-22
Rated 5 out of 5 by from Have purchased numerous times and will continue to purchase! This is a perfect post filter for my whole house filtration system.
Date published: 2017-04-16
Rated 5 out of 5 by from Have purchased numerous times and will continue to purchase! This is a perfect post filter for my whole house filtration system.
Date published: 2017-04-16
Rated 5 out of 5 by from I would buy this product again. Easy water for life program. When the new filters show up I know it's time to change them.
Date published: 2017-03-18
Rated 5 out of 5 by from I would buy this product again. Easy water for life program. When the new filters show up I know it's time to change them.
Date published: 2017-03-18
Rated 5 out of 5 by from Great system with great results. Website is easy to use, customer service is terrific. We looked at many options and especially for the money this is a great product. We used a licensed plumber who found it easy to install. One note is that the "instructions" could be more detailed.
Date published: 2017-03-11
Rated 5 out of 5 by from Great system with great results. Website is easy to use, customer service is terrific. We looked at many options and especially for the money this is a great product. We used a licensed plumber who found it easy to install. One note is that the "instructions" could be more detailed.
Date published: 2017-03-11
Rated 5 out of 5 by from Great post filter for filtration system Great enhancement to water quality.
Date published: 2017-02-20
Rated 5 out of 5 by from Good Filter Filter works good.
Date published: 2017-02-07
Rated 5 out of 5 by from Very good product Easier to relace then to try and clean the filter
Date published: 2017-01-11
Rated 5 out of 5 by from Really makes the water crystal clear, tast & odor free If you purchase the whole home system don't skimp on the post filter. It really makes a difference.
Date published: 2017-01-10
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User Q & A

You have a blue post filter now instead of the red & it does not work the same... my water wreaks of rotten eggs. Other people are saying the same thing about the new filter. Are you going to fix this problem? Support is not answering these questions.

Asked by: waterquestions
Same here. I had stocked up on the old style purple top post filters. Since I was stocked up I just had to purchase new ones and they are the new blue top filters. (I have 2 complete systems side by side for the additional water flow). The new filters immediately produced a raw egg smell (my wife says it smells like wet dog). It isn’t a rotten egg smell like a sulfur smell. It only smells with the hot water though. I flushed and treated my hot water thinking that was the issue to no avail. If I bypass the filtration The smell is gone. As soon as I return to the filtration the smell is back immediately. To confirm I removed the post filters from the housing and ran the system without them. No smell. So the problem is definitely the new post filters. 
Answered by: Scott g
Date published: 2020-01-19

What is the micron rating of the 10” post filter

Asked by: Air Conditioning professo
Thank you for your interest in Aquasana! Our Whole Home pre filters have a 5 micron rating. Thank you, Aquasana Support
Answered by: Aquasana S
Date published: 2019-12-30

Is the the correct post filter for the Aquasana 10 year, 1M gallons I purchased in Feb 2017?

Asked by: Twillet
Hello Twillet, Yes, this is the correct filter. Please let us know if we can further assist. Thank you, -Aquasana Support
Answered by: Aquasana S
Date published: 2019-11-07

Is it good for the EQ600? How often do we have to change this cartridge?

Asked by: Anonymous
I believe this filter works very well. We try to change ours about once every 2 to 3 months, however we have a well with lots of rust build up.
Answered by: CandyRay
Date published: 2019-10-28

Please can you confirm micron ratings for filters.

Asked by: Richard the water enthusu
Hello, This is a .35 micron post filter for the whole home filtration system. Thank you, -Aquasana Support
Answered by: Aquasana S
Date published: 2019-10-01

i dont understand why this filter is so expensive. please explain.

Asked by: fred with?
Hello, It appears you have several questions that would best be answered by a consultation with one of our experts over the phone. Please call our sales department at 866-662-6885, options 1 and 1 to discuss a potential solution for your home. Thank you, Aquasana Support
Answered by: Aquasana S
Date published: 2019-10-23

Is this the 10 inch post replacement filter?

Asked by: Myrtle Beach G.P.
Hello, Thank you for your question. This is our post filter, if you are referring to the 10" pre filter I have provided a link down below. https://www.aquasana.com/replacement-whole-house-filters/10in-pre-filter-4-pack Thank you! -Aquasana Support
Answered by: Aquasana S
Date published: 2019-09-21

Hello I need a replacement filter for a dirt hog dh20-20. Thank you

Asked by: Waterboy3605
Hello, Please contact us at 866-662-6885 to help further assist on helping place an order for your filters. Thank you! Aquasana Support
Answered by: Aquasana S
Date published: 2019-09-21
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