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The FiltersFast FF10SW-30 is the correct replacement water filter for the Pentek CW-MF. The FF10SW-30 is specifically designed to reduce extra fine sand, dirt, silt, rust, and scale particles out of your water to improve the performance of your appliances. String wounds filters are not very common in the marketplace but they do offer excellent tolerance to a wide range of temperatures and minimal pressure drops near the end of their service life. The FF10SW-30 is an economical alternative to the American Plumber W5W (5 micron) water filter and is effective as a pre-filter in well-water applications.

FiltersFast FF10SW-30 Filter Specifications:

• Part Number: FF10SW-30
• Replaces Part Number: CW-MF
• Micron Rating: 30
• Flow Rate: 10 gpm (gallons per minute)
• Temperature: 40-165°F
• Reduces sand, rust, sediment, silt, dirt, and scale particles
• Dimensions: 2-3/8"x9-7/8"
• Capacity: 12,000 gallons (depending on water quality and usage)

Please note that the FF10SW-30 is a 30 micron filter and the W5W is actually a 5 micron filter, but the two filters are interchangeable.

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The Pentek CW-MF String Water Filter - W30W reduces sand, dirt, silt, rust, and scale particles from your drinking water. This Pentek water filter is an economical choice that will protect your appliances and plumbing fixtures. This water filter cartridge is made of wound polypropylene, which is ideal for well water applications.

Pentek CW-MF Filter Specifications:

• 30 Micron Rating
• Reduces Sand, Rust, Scale Particles, Dirt and Silt
• 2 3/8 inch x 9 7/8 inch cartridge
• 16,000 gallon filter capacity
• Up to 10 GPM Flow Rate
• Max Temp: 40-145°F
• Part Number: 155187-43

The Pentek CW-MF Water filter is a replacement for the following filter cartridges:

• Ametek, Culligan, Kleen-Plus, US Filter - CW-MF
• American Plumber - W30W
• Ace Hardware 48237
• Keystone W30

The Pentek CW-MF filter is used in the following filter systems:

• Culligan HF-360
• Ametek, Culligan, Pentek, US Filter, and Plymouth #10 Blue and #10 Clear, 10 inch Standard size whole house filter systems

California Residents: Prop 65 Warning

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