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 Easy Breezy We love, love LOVE our whole house Aquasana filter. It is, without a doubt the best upgrade we have done for ourselves. Clean water is SO important. We take gallons of it with us on road trips. Friends stop by and ask for a glass or a bottle to take home. It is delicious! That said, yes, the filters must be great. And they are easy to install.
Date published: 2020-10-24
Rated 5 out of 5 by from Good, Easy to Install It works well, and is easy to install in the appropriate filter container in our whole house system.
Date published: 2020-10-15
Rated 5 out of 5 by from Quality Product I’ve had the system for over a year now and find it to be very reliable filtration system. There is no real maintenance other than changing the filters when necessary. It does take some time to figure that out. I initially went with the factory recommendations for changing but quickly determined that my water was such that need more frequent changes but it’s still cheaper than salt and I saved THOUSANDS compared to a salt system.
Date published: 2020-10-04
Rated 5 out of 5 by from Excellent product I enjoy fresh and clean tasting water so I change filter regularly. Aquasana filter is easy to replace and install.
Date published: 2020-10-04
Rated 5 out of 5 by from Product arrived as promised. Easy to install. Filter system including this filter has performed very well. The rust and iron have been removed and the egg like odor of the water is gone as well.
Date published: 2018-04-29
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
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User Q & A

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: 2020-06-10

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

I have the whole home filter with pre and post filter.  The post filter turns black within a day of installing.  Is this normal ?  The prefilter is ok, it’s still white.  Why does it turn black so soon ? 

Asked by: Ann ha
I've had a similar problem with the post filter turning black and a black powdery substance attaching below the waterline in the toilets. My EQ-1000 was professionally installed on 02/18/2019 and the carbon fines started appearing within a month. In my case it was a faulty carbon filter that seemed to be slowly disintegrating into what Aquasana calls "fines". A Support Rep recommended I disconnect the large carbon filter and re-flush it. In my case it didn't help. Finally, after sending photos of the blackened toilet bowls, Aquasana sent a replacement carbon filter which I just finished flushing and installing. Too soon to tell if the issue is resolved, but I believe the new filter should do the trick.....fingers crossed.
Answered by: Jim876
Date published: 2020-10-21

Does this filter lead?

Asked by: Ingrid
Yes
Answered by: Jbmuss
Date published: 2019-09-21

What micron is the whole house post filter?

Asked by: Dandy
The post filter is a 0.5 sub-micron filter.
Answered by: Aquasana Service Team
Date published: 2019-07-01

I bought EQ-600-PRO system. Is this the standard 10" post filter replacement cart?  Thanks!

Asked by: C P Cheung
Hello, Thank you for your question. Yes! That is the correct replacement cartridge for the 10" Post-Filter. If further assistance is needed, kindly contact our service team at 866.662.6885. Thank you, Aquasana
Answered by: Aquasana Service Team
Date published: 2019-05-29

We just changed our post filter and looked at some of the water from the old filter under a microscope. We could see something tiny moving around, like tiny worms. Any guess what it could be?

Asked by: Pat49
Pat, Thank you for your question. We would like this inquiry to be handled by a Whole Home Specialist. Please contact our team at 866.662.6885 or email support@aquasana.com for assistance. Thank you, Aquasana
Answered by: Aquasana Service Team
Date published: 2019-10-10

Does this post filter compatible with the EQ-1000 whole house filter system?

Asked by: Donna Reese Clean Water
That is an Aquasana Whole House Filter System, so yes, the filter will work, and it is easy to replace. I have that system, also called the Rhino Whole House Water Filter 1,000,000 gallon set. 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.
Answered by: genshmrbn
Date published: 2018-09-21

Is this the post filter that is used on the rhino eq 300 whole house filtration system?

Asked by: The Dawg
I am taking a guess based on my brief research that yes it should fit. Eq300 was discontinued and now only 600,000 and 1,000,000 gallons is sold and they both have the same size post filter. Only the pre filter comes in two different sizes. But please call aquasana customer service to confirm. I have a 1,000,000 gallons system.
Answered by: Moe d
Date published: 2018-06-20

Is this the post filter EQ-PFC.35?

Asked by: Tanya
Hi Tanya! Yes, this is the EQ-PFC.35 post filter for the whole home systems. Let us know if you have any other questions! Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-06-02

Does it remove lead and other heavy metals from water?

Asked by: anjh
Our whole home systems are only certified to reduce chlorine, since NSF is limited in the testing they offer for Whole Home systems. We do know that the media used can reduce volatile organic chemicals, herbicides, pesticides and other chemical compounds. We add a pre-filter to help reduce reduces rust, sediment and silt and a .35 micron post filter to remove particulates 60 times smaller than the eye can see.
Answered by: Aquasana Customer Support
Date published: 2019-04-26

Hi, How to subscribe and save for my whole house pre and post filters?

Asked by: Prakash
I buy them in cases from Amazon. They do not need changed often
Answered by: Bridget
Date published: 2018-09-21

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: 2018-10-24

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: 2018-08-24

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: 2019-06-10

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: 2018-12-28

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: 2018-12-15

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

Whole house filter: searching for replacement cartridge for Aqua Flo Model: P-PC-20-20BV, Number 36157, Filter size: 4.5" X 20", Micron: 20.0, 20.0 gpm, Pressure range 30-60 PSI, to reduce sediment. To fit standard 20" BV Housing

Asked by: Truns
This questioner seems to be looking for a 20-inch filter (probably a pre-filter or stand-alone), whereas the filter I recently bought and am being asked to comment on is a 10-inch post-filter. A 10-inch filter is definitely NOT appropriate for a 20-inch housing.
Answered by: kstar
Date published: 2017-11-09

How many micron is it

Asked by: Fudd

Is this filter Eq PFC35? That was the number on my first order.

Asked by: Jack Timms

what is the dimension of this filter ?

Asked by: lewis

What are the diam of the filyer

Asked by: Charlie the tuna

What are these filters made of? What is in the filter that makes it clean the water?

Asked by: Sylvia

How many microns does it filter to and gallons per minute flow rate?

Asked by: My clean water

How many microns are these pleated post filters?

Asked by: Glynis

dimensions? Mine is at least 4" x 10". This looks smaller.

Asked by: Nohiros

I have the Rhino EQ-PFC.35 Whole house Post Filter. .. Is this the right one?

Asked by: Dorey Evans
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