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Watts 20" x 4.5" Water Filter Housing - 1" FPT


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This Watts 20" Large Water Filter Housing (Watts FH10000BL1) is an extra-wide filter housing that accommodates all large 20" x 4 1/2" Full Flow water filter cartridges.

The Watts FH10000BL1 is made of a durable, reinforced polypropylene that is resistant to a variety of chemicals. Topping the housing off is a high-flow black polypropylene cap (HFPP) with a 1" female pipe thread port that allows water to pass through rapidly. The thick side walls and buttress thread design allows for superior sealing and security. This along with the already larger-than-standard filter capacity makes large housings a popular choice for high flow whole house applications.

Watts FH10000BL1 20" Full Flow Water Filter Housing Specifications:

  • Max. Press.: 125 PSI
  • Connection: 1" FPT/FNPT
  • Temp. Range: 40 - 125 F
  • Dimensions: Approx. 24" x 7 1/4"
  • Flow Rate: Varies according to the filter cartridge used
  • Compatibility: All 20" length x 4.5" diameter Large filters
  • Materials: Made from FDA grade polypropylene (ANSI/NSF 42 Certified)

Compatible Models:

The Watts 20" x 4.5" Water Filter Housing - 1" FPT is correct replacement for the following model numbers:

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Customer Reviews:

Total Reviews: 1 | Average Rating: 5 / 5.0

M. King2011-08-05

I bought this to replace a leaking Pentek 4.5 x 20 housing, it was brand new and gave me bad leaking issues. This Watts brand so far is not leaking at all. It seems to have a better seal design.

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