Pentek O-Ring for Big Blue Housings

Pentek 151122 | Our#: 175595

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Pentek O-Ring for Big Blue Housings

Pentek O-Ring for Big Blue Filter Housings

Pentek 151122 O-ring (OR-100) is used for "Big Blue" Housings by Culligan, Ametek, Ace Hardware, Pentek, US Filter, Plymouth, Kleen Plus, and American Plumber. O-ring is approximately 5 3/4" in diameter.  This O-Ring is used in all Big Blue housings by Pentek with 1" NPT and 1-1/2" NPT  EXCEPT the Big Clear Housing.

An O-Ring is very important part of your water filter system, and it should be maintained and replaced regularly.  The O-Ring serves as a gasket to seal the housing sump to the housing cap to prevent leaks.

Important O-Ring Tips:

  • Inspect O-Ring during each filter change for damage, cracks, splits
  • Cover O-Ring with silicon lubricant during each filter change
  • Do not overtighten filter sump (do not use filter wrench to tighten sump - only use wrench to loosen sump)
  • Repace O-Ring every two filter changes