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The 3M Aqua-Pure AP814 Whole House Water Filter fits the AP801, AP801T, and the AP801-1.5 Whole House Water Filter Systems, and all brands of housing with the same size requirements. The AP814 composite wound water filter cartridge design allows large particles to be trapped on the outer surface while smaller particles are trapped closer to the core. This makes the AP814 water filter ideal for use if you have heavy dirt / sediment problems in your water.

3M Aqua-Pure AP814 Whole House Water Filter Specifications:

• Part Number: AP814
• 3M ID Number: 7000029351
• Cartridge Dimensions: 4 1/2" x 9 3/4"
• Micron Rating 50
• Flow Rate 20 gpm
• Temperature Range: 40-100°F
• Pressure Range: 25 psi - 125 psi (172 kPa - 862 kPa)

The AP814 is a top of the line filter from 3M Aqua-Pure. Also known as 5599401 and 55994-01.

The Watts 10" String Wound Filter is a 50 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 (SF50-10-425) 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 sediment filter cartridge fits most water filter housings that require standard sized large 10" water filters (9 3/4" x 4 1/2").

The Watts SF50-10-425 polypropylene string wound filter is also commonly known as a string wound PP filter cartridge.

Watts SF50-10-425 String Wound Filter Cartridge:

• Max Temp.: 140 F
• 50 Micron Rating
• Dimensions: 9.75"L x 4.50"D
• Reduces: Sediment, Sand, Dirt, Rust, Etc.
• 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 water pressure is noticed.