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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.
20 X 4.5 Carbon Block Replacement Filter by Tier1 (5 micron)
Price $39.67 List Price Price $56.99 Save 30%Tier1 20 inch Big Polypropylene Filter Housing with Pressure Release and Carbon Filter Kit (1 inch Inlet/Outlet)
Price $112.99 List Price Price $160.99 Save 29%Free ShippingTier1 Pentek EP-20BB 155583-43 Carbon Filter Cartridge Comparable Replacement Kit with O-ring and Lubricant
Price $32.34 List Price Price $46.99 Save 31%20 X 4.5 Spun Wound Polypropylene Replacement Filter by Tier1 (5 micron)
Price $27.45 List Price Price $39.99 Save 31%Tier1 Pentek DGD-5005-20 Comparable 155358 Spun Polypropylene Filter Cartridge Replacement Kit with O-ring and Lubricant
Price $27.41 List Price Price $39.99 Save 31%20 X 4.5 Spun Wound Polypropylene Replacement Filter by Tier1 (1 micron)
Price $27.10 List Price Price $38.99 Save 30%10 X 4.5 Carbon Block Replacement Filter by Tier1 (10 micron)
Price $22.37 List Price Price $31.99 Save 30%Tier1 RFC-20BB 20 X 4.5 Radial Flow Granular Activated Carbon Replacement Filter (25 micron)
Price $43.91 List Price Price $62.99 Save 30%10 X 4.5 Polypropylene Replacement Filter by Tier1 (50 micron)
Price $11.01 List Price Price $15.99 Save 31%20 X 4.5 Carbon Block Replacement Filter by Tier1 (10 micron)
Price $44.72 List Price Price $63.99 Save 30%20 X 4.5 Pleated Cellulose Replacement Filter by Tier1 (20 micron)
Price $27.52 List Price Price $39.99 Save 31%Tier1 10 inch Big Polypropylene Filter Housing with Pressure Release and Carbon Filter Kit (1 inch Inlet/Outlet)
Price $75.74 List Price Price $108.99 Save 30%