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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 Spun Wound Polypropylene Replacement Filter by Tier1 (5 micron)
Price $23.99 List Price Price $33.99 Save 29%Tier1 Pentek DGD-5005-20 Comparable 155358 Spun Polypropylene Filter Cartridge Replacement Kit with O-ring and Lubricant
Price $26.99 List Price Price $38.99 Save 30%20 X 4.5 Spun Wound Polypropylene Replacement Filter by Tier1 (1 micron)
Price $27.99 List Price Price $39.99 Save 30%Tier1 10 inch x 4.5 inch String Wound Sediment Water Filter (20 Micron)
Price $25.99 List Price Price $36.99 Save 29%10 X 2.5 Spun Wound Polypropylene Replacement Filter by Tier1 (25 micron)
Price $7.99 List Price Price $10.99 Save 27%Tier1 10 inch x 4.5 inch Whole House Sediment Water Filter (1 Micron)
Price $17.99 List Price Price $25.99 Save 30%10 X 2.5 String Wound Polypropylene Replacement Filter by Tier1 (30 micron)
Price $8.99 List Price Price $12.99 Save 30%20 X 2.5 Spun Wound Polypropylene Replacement Filter by Tier1 (10 micron)
Price $24.99 List Price Price $35.99 Save 30%10 X 2.5 Spun Wound Polypropylene Replacement Filter by Tier1 (10 micron)
Price $8.99 List Price Price $12.99 Save 30%Tier1 10 inch x 4.5 inch Sediment Water Filter (10 Micron)
Price $14.99 List Price Price $20.99 Save 28%10 X 4.5 Spun Wound Polypropylene Replacement Filter by Tier1 (5 micron)
Price $16.99 List Price Price $23.99 Save 29%Tier1 10 inch Big Polypropylene Filter Housing with Pressure Release and Sediment Filter Kit (1 inch Inlet/Outlet)
Price $81.99 List Price Price $116.99 Save 29%