Crystal Bio Water Treatment UAE > Products > Spare Parts & Consumables > O-Ring Replacement Water Filter Housing ORing

O-Ring Replacement Water Filter Housing ORing

O-Rings are used to seal the water filter housing cap to the water filter housing sump to prevent leaks. It is important to lubricate your o-ring with food grade silicone grease.

  • 2x o-rings for standard 10″ filter housing (undersink/twin blue filter)
  • Recommended replace o-ring every 2-3 years


The o-ring is made of nitrile butadiene rubber (Buna-N) which offers superior flexibility and resistance to tearing during installation and use. This o-ring fits Pentek Standard and 3G standard filter housings, which are used in various applications and labeled under many brand names.

This is compatible with the following filters:
10″ and 20″ housings with 3/4″ inlet/outlet connections.
Whole House Blue Jumbo Filters
Culligan Filters
Aqua Filters

If you do not know the size of your system’s o-ring, open the filter housing and measure the diameter of the o-ring. Your housing determines your o-ring size and not the filter that is used inside your housing.


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