Replacement FiltersGenuine Aqua-Pure® replacement filters are available for your previously purchased drinking water or whole house filtration system. Each filter identifies the corresponding system to which it belongs, and most are simple to replace, usually just a 1/4 turn to the left to remove and to the right to replace.
Aqua-Pure® Scale Inhibition System Replacement Cartridge (AP431 - Priced as 1 each)
Model #: AP431$51.05
Aqua-Pure® Drinking Water System Replacement Filter (AP420 - Priced as 2 pack)
Model #: AP420$164.10
Aqua-Pure® Whole House Replacement Filter (AP917HD-S - Priced as 1 each)
Model #: AP917HD-S$343.29