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AQUACREST AP431 Undersink Water Filter

In stock

$18.89 /pack

Price $ 21.99 (14.10% off)

$18.89 /pack

Price $ 21.99 (14.10% off)


Product Details

Aqua Pure Replacement AP431

*Please note this is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only.

Operating Specifications
Min. operating temperature 4.4℃/40℉
Max. operating temperature 38℃/100℉
Min. workding pressure 207 kPa/30 psi
Max. workding pressure 862 kPa/125 psi
Rated capacity 7,571 litres/2000 gallons
Flow rate 37.9 lpm/10 gpm

Refined Design

Expertly designed to promise a perfect fit the original without the mess

2000 Gallons Filter Life

Replace your filter every 6 months or 2000 gallons, whichever comes first

Cost-effective Choice

Offer reasonable price without compromising quality

Owner's Manual



Five Stars
By marty christy on 3/27/2018
Five Stars

By Michael D. Shriver on 2/17/2018
Works like a charm! Love the price…

5 stars
By Kory stephenson on 10/30/2017
Good product fast shipment

Thanks for a good product.
By Mr. Louis F. Faiella on 8/20/2017
I just installed a new (oil) boiler and my plumber installed the AP431 to keep the "tankless" hot water heat exchanger clear of minerals.
I will need this one in a few months and I bought in advance since the price was right. Thanks for a good product.

Quality replacment
By TAE on 8/8/2017
This seems to be a high quality replacement filter. We have had problems with other brands fitting properly and leaving black chunks (harmless charcoal, but not appetizing) in our water, we have had no problems with this brand.

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It can be used for 6 months. But the filter life will vary based on your water conditions. Therefore, it is recommended you change your filter every 6 months or sooner when you notice a change in taste, odor, or flow of the water being filtered for optimal performance.
Yes. It is highly recommended you flush the filter before using. Water filters are made from advanced coconut activated carbon, so there are some carbon fines in the filter. It is quite normal. You need to flush firstly to remove those carbon fines to get clean water.
Yes. You must replace the filter every 6 months or sooner. Otherwise, there may be heavy sediment or rust in your filter system, which will cause filter fatigue and therefore the water damage.