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Watts 20" x 4.5" String Wound Filter - 5 Micron

SF5-20-425

 4.50 (2) Read The Reviews!
$49.95
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Frequently Bought With This Item

The Watts 20" String Wound Filter is a 5 micron water filter cartridge made of FDA grade polypropylene fibers that will reduce sediment, sand, dirt, rust, and other impurities in your water. This Watts Full Flow string wound water filter (SF5-20-425) offers excellent chemical compatibility and high dirt filtering capacity, all at an economical price. This string wound filter is made of FDA grade polypropylene and is suitable for potable water as well as industrial use.

Watts filter cartridges are compatible replacement filters for Pentek Big Blue filters as well as Culligan filters. These Full Flow water filters feature a higher flow rate and dirt-holding capacity than standard sized (2 1/2") sediment water filter cartridges.

This Watts string wound filter cartridge fits most water filter housings that require 20" water filters (20" x 4 1/2").

The Watts SF5-20-425 polypropylene string wound filter is also commonly known as a string wound PP filter cartridge.

Watts SF5-20-425 String Wound Filter Cartridge:

  • 5 Micron Rating
  • Max Temp: 140 F
  • Dimensions: 20" x 4 1/2"
  • Reduces: Sediment, Sand, Dirt, Rust
  • Media: FDA Grade Wound Polypropylene (PP) Fibers

Filter life depends on water quality and usage. This Watts filter should be changed when a decrease in pressure is noticed.

Compatible Parts:

The Watts 20" x 4.5" String Wound Filter - 5 Micron is the correct replacement for the following part numbers:

Part Number
68107745
AQUAFLO 36142
PENTEK PFWP5BB20P
No results for {X}

Compatible Models:

The Watts 20" x 4.5" String Wound Filter - 5 Micron is correct replacement for the following model numbers:

BrandModel NumberDescription
PURA 15820121 Water System
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Customer Reviews:

Total Reviews: 2 Average Rating: 4.5 / 5.0

Filtersfast Reviews on Trust Pilot external site
Frank Snyder2025-02-09

Works well removing iron particles in my water stream

Collected by Trustpilot.com
Jean2022-08-26

The website is very user friendly. Shipping time is prompt.

Collected by Trustpilot.com

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