Replacement water filters are essential for anyone who currently owns a water filtration system.
Our replacement water filters are sold separately and can be implemented into an existing water filter system. Waterfilters.net has a comprehensive selection of water filter replacements. Some of the most commonly used replacements include drinking water filters, point of entry filters, point of use filters and whole house replacement water filters. Replacement water filters work with your filtration system to help eliminate bacteria, molds, viruses, algae and other microorganisms in your water source.
Choose the type of replacement water filter you are looking for below. If you cannot find the type of replacement filter you are looking for, please contact our customer service department.
776 Products found
Pentek RFC-20BB Radial Flow Water Filters (20-inch x 4.5-inch)Price $103.99 List Price Price $148.99 Save 30%Free Shipping
Pentek RFC-BB Whole House Filter Replacement CartridgePrice $59.99 List Price Price $85.99 Save 30%
AP917HD Whole House Water Filter Replacement by 3M Aqua-PurePrice $258.99 List Price Price $369.99 Save 30%Free Shipping
Tier1 Pentek EP-20BB 155583-43 Carbon Filter Cartridge Comparable Replacement Kit with O-ring and LubricantPrice $46.99 List Price Price $67.99 Save 30%
20 X 4.5 Carbon Block Replacement Filter by Tier1 (5 micron)Price $39.99 List Price Price $56.99 Save 29%
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 LubricantPrice $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%
10 X 4.5 Carbon Block Replacement Filter by Tier1 (10 micron)Price $27.99 List Price Price $39.99 Save 30%
Tier1 RFC-20BB 20 X 4.5 Radial Flow Granular Activated Carbon Replacement Filter (25 micron)Price $37.99 List Price Price $53.99 Save 29%
20 X 4.5 Carbon Block Replacement Filter by Tier1 (10 micron)Price $48.99 List Price Price $69.99 Save 30%
20 X 4.5 Pleated Cellulose Replacement Filter by Tier1 (20 micron)Price $27.99 List Price Price $39.99 Save 30%