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Pentek S1-20BB Whole House Water Filter- 20 Micron


Pentek S1-20BB Whole House Water Filter- 20 Micron
as low as $15.75 /ea
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Product Information

The Pentek S1-20BB replacement whole house water filter is rated 20 microns for the effective reduction of sand, dirt, sediment, silt, rust, and scale particles in drinking water. The pleated cellulose construction allows for maximum dirt-holding capacity, while the extended filter length improves water flow rates. The Pentek S1-20BB is ideal for use with chlorinated water but can server general water filtration purposes. A polypropylene core is strong enough for variable flow rates.

Pentek S1-20BB Replacement Specifications:

  • Part Number: S1-20BB
  • Dimensions: 20"x4-1/2"
  • Micron Rating: 20
  • Filter Life: 24,000 Gallons; 6 months
  • Temperature Range: 40 - 125 F
  • Flow Rate: 1.2 psi @ 10 GPM
  • Reduces sand, rust, sediment, silt and scale particles
  • Also known as the American Plumber W20CLHD20, American Plumber 155305 and Keystone GC20-20 Filter
  • Note: Pentek has recently changed the design of the Pentek S1-20BB. There is no longer any nylon netting encasing the filter.

The Pentek S1-20BB Replacement Fits Standard Size #20 Big Blue housings housings from Pentek, Culligan, Ametek, US Filter, and Plymouth Products, Or Any Housing That Uses 4-1/2"x20" Cartridges.

If you don't see your model number check with the manufacturer to guarantee compatibility.

For more information Click Here.


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