O-Ring for 4" Membrane Housing End Caps

Replacement O-Ring Seal for membrane housing pressure vessel end caps.  External O-ring which seats between the outside of the end cap and the inside of the vessel body.  O-Rings should be replaced each time the membrane elements are replaced, in order to avoid leaking due to seal tearing and cracking.

EPDM O-Rings are are recommended to be lubricated with DOW Corning 111 High Grade Silicone Lubricant.