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Tier1 Air & Water Filters

We deliver quality & value: Tier1® brand filters deliver high quality and maximum performance comparable to OEM brand models but at a discounted rate.
We have you covered: We have replacement models for all the top water filter, air filter, faucet filter, whole house filter, and pool and spa filter brands, including American Plumber, Aqua-Pure, Culligan, Pentek, Whirlpool, and more.
Tier1 20 inch Big Polypropylene Filter Housing with Iron and Manganese Reduction Water Cartridge Kit
Price $109.99 List Price Price $142.99 Save 23%Free ShippingTier1 20 inch Big Polypropylene Filter Housing with Iron and Lead Reduction Water Cartridge Kit
Price $124.99 List Price Price $162.49 Save 23%Free ShippingTier1 20 inch Slim Polypropylene Filter Housing with 5 Micron Carbon and Polyphosphate Water Softening Cartridge Kit
Price $70.99 List Price Price $92.29 Save 23%Tier1 20 inch Slim Polypropylene Filter Housing with 1 Micron Carbon and Polyphosphate Water Softening Cartridge Kit
Price $72.99 List Price Price $94.89 Save 23%Tier1 20 inch Slim Polypropylene Filter Housing with 10 Micron Carbon and Anti-scale Water Softening Cartridge Kit
Price $81.99 List Price Price $106.59 Save 23%Tier1 20 inch Slim Polypropylene Filter Housing with Pressure Release and Sediment Filter Kit (3/4 inch Inlet/Outlet)
Price $69.99 List Price Price $99.99 Save 30%Tier1 20 inch Slim Polypropylene Filter Housing with Pressure Release and Pleated Filter Kit (3/4 inch Inlet/Outlet)
Price $74.99 List Price Price $106.99 Save 29%Tier1 20 inch Slim Polypropylene Filter Housing with Pressure Release and Carbon Filter Kit (3/4 inch Inlet/Outlet)
Price $73.99 List Price Price $105.99 Save 30%Tier1 20 inch Big Polypropylene Filter Housing with Pressure Release and Sediment Filter Kit (1 inch Inlet/Outlet)
Price $78.99 List Price Price $112.99 Save 30%Tier1 20 inch Big Polypropylene Filter Housing with Pressure Release and Pleated Filter Kit (1 inch Inlet/Outlet)
Price $105.99 List Price Price $150.99 Save 29%Free ShippingTier1 20 inch Big Polypropylene Filter Housing with Pressure Release and Carbon Filter Kit (1 inch Inlet/Outlet)
Price $113.99 List Price Price $162.99 Save 30%Free ShippingTier1 10 inch Big Polypropylene Filter Housing with Pressure Release and Sediment Filter Kit (1 inch Inlet/Outlet)
Price $82.99 List Price Price $118.99 Save 30%