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 months.

Whole House Post-filter Cartridge Replacement is rated 4.3 out of 5 by 155.
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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.

Easy replacements with no plumber required, this post-filter cartridge should be replaced every 6 months. Use only genuine Aquasana replacements to ensure sediment removal and system performance.

Download replacement instructions here

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Read the Reviews

Rated 5 out of 5 by from Great All good as usual. I got a leak when I replaced the filter but after reading the instructions I found the missing o-ring on the floor & everything was fine again after I put it back in. How silly of me :)
Date published: 2018-02-27
Rated 5 out of 5 by from Love our Aquasana Whole house Filter We live about 35 miles from town. Our well water comes from the lake we live on but for as long as I can remember my family has never had the water filtered and no one would drink the well water and barely bathed in it. We used Bottled water to drink and the tubs always had hard water stains as well as rust in them. When my wife and I took over the family lake home 4 years ago we bought your Aquasana water system and WOW. The water smelled good clear clean no rust no bad taste you can actually drink it. We love it!!!
Date published: 2018-02-16
Rated 5 out of 5 by from great value We've had a month and we are very pleased with it. We can now drink the water from the tap
Date published: 2018-02-16
Rated 5 out of 5 by from great system I have used Aquasana products in the past and very happy.
Date published: 2018-02-12
Rated 5 out of 5 by from Easy purchase The website makes it easy to purchase replacement filters and prices are reasonable.
Date published: 2017-12-29
Rated 5 out of 5 by from Regular maintenance Easy to install the new filter. Makes the pressure and flow back to normal
Date published: 2017-12-25
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 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
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User Q & A

Is this good for the HAHN filtration  Model: HF- 600

Asked by: Maha
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-5pm CST, and weekends from 9am-5pm CST.   Thank you,   Aquasana Support
Answered by: Aquasana S
Date published: 2020-06-30

What are the specifics about this filter’s performance?

Asked by: Anonymous
All I know is that it lasts a lot longer than the prefilter, is more expensive, and that I change mine every 2-4 months. Mine has a transparent casing so I can see when it becomes darker with charcoal particulate. Even then it performs well, but I change it anyway.
Answered by: Sweet Grace Farm
Date published: 2020-06-18

Is this good for the eq-300?

Asked by: Wagner
Wagner, Thank you for your question. Please contact us at 866-662-6885 or email us at Support@aquasana.com and we will be happy to help look up the system you own and provide the correct filters needed. We look forward to hearing back from you. Thank you, Aquasana Support
Answered by: Aquasana S
Date published: 2020-03-05

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: 2020-12-05

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: 2020-12-16

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: 2019-11-30

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: 2020-10-16

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: 2020-04-12
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