Whole House Post-filter Cartridge Replacement

The post-filter, considered a polishing agent, removes particulates 60 times smaller than the eye can see, including insoluble minerals and cysts. This cartridge should be replaced every 6-12 months.

Whole House Post-filter Cartridge Replacement is rated 4.3 out of 5 by 143.
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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 removes particulates 60 times smaller than the eye can see. This includes insoluble minerals and cysts. The addition of this post-filter is considered a polishing agent and adds a level of protection for your household in the event of an outbreak of cryptosporidium or giardia. 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 gets rid of all the bad stuff seems effective for getting impurities and bad taste out of water.
Date published: 2018-04-04
Rated 5 out of 5 by from Great Results! I purchased and installed the EQ-1000 filter a couple weeks ago and have enjoyed good, clean water ever since! I was able to install it myself, which was fairly time consuming, but not too difficult. After waiting a day or two to let the new water get through our pipes, we compared our new purified water to both our old unfiltered water and store bought water, and WOW what a difference! We could immediately taste the difference between the new and old water, and the new water was indistinguishable from the purified store bought water. We are extremely satisfied with the performance of this unit, and would definitely recommend it, provided the filters hold up as long as they say they should.
Date published: 2018-04-02
Rated 5 out of 5 by from Water tastes great! This post filter cartridge unit was for routine replacement. We purchased a whole house unit including the softener over a year ago. Prior to installation, our water had a slight taste and odor similar to algae and white scale built up on fixtures quickly. The units have made a world of difference. The water tastes as good as any bottled water on the market and we no longer have to buy purified water for appliances. We installed a dual system side by side and have no problems with flow rate, even when running the washing machine and showering at the same time. I highly recommend the dual unit if you have reasonably high demand. We temporarily ran with one side turned off and the the difference in water pressure while showering was noticeable - especially if water was being used elsewhere in the house. I also recommend a drip plan underneath to catch water in the event you have a leak at the fitting and during filter maintenance.
Date published: 2018-03-21
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
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User Q & A

Is it 50% off the MSRP price? For example, the MSRP price on the post whole house water filter is $29.95, so my price would be $14.98?

Asked by: pook
Aquasana foolishly sent this question to me, a previous customer, but they apparently didn't bother to read it. If they had they would have realized this is a question only they can answer. WAKE UP AQUASANA. Your filters are great but this ... not so much.
Answered by: kstar
Date published: 2018-03-27

Does it remove lead and other heavy metals from water?

Asked by: anjh
Yes, I believe so
Answered by: Stephen
Date published: 2018-03-22

What is the length of this post filter

Asked by: Marc
If this is the same filter I have, the length is about 9 3/4 inches. It is designed to fit the standard Aquasana filter cylinder, which is the important thing.
Answered by: kstar
Date published: 2018-02-07

Is the whole house unit making purified water

Asked by: KATHYK
Yes ! It's great best water purifier I definitely recommend it
Answered by: JP drink-up
Date published: 2018-03-22

Is this the filter for the 4 X20 inch filter?

Asked by: carolmarie
I believe it is. There are two filter cartridges in my system; one before the big blue filter, and one after the big blue filter, this is the one that comes after the big blue. If you call Aquasana they are very helpful and will make sure you get what you need.
Answered by: Ritbey
Date published: 2018-03-08

I just replaced my Whole House Post-filter Cartridge. It has been 5 months, and it was black. Is this normal? We are a 2 person household.

Asked by: Wilk
We have been checking our post filter every 2 months and it's black.  The pre-filter is always clear.
Answered by: jwilly
Date published: 2018-03-29

Are these 0.35 Sub-Micron Post-filters? thx- stv

Asked by: foursu
Hello! This is a .35 micron post filter for the whole home filtration system. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-03-22

What is the gallons per minute flow rate for the 10" WHOLE HOUSE POST-FILTER CARTRIDGE REPLACEMENT

Asked by: Jeannie
I am merely a user, but Aquasana has asked me to respond to this question. I have no idea of a quantitative flow rate, but presumably Aquasana could come up with an answer. I can say that we have had Aquasana full-house filtration systems at two houses and the flow rate throughout the house seems to be limited primarily by what the water utility provides, not by the filters all the water goes through (until the filters get so clogged they need to be replaced).
Answered by: kstar
Date published: 2018-03-22
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