O-ring ( RP2000 ) for the cap of membrane housing RP2500
* Many not fit other "brands" or "styles" of housing.
If not sure, please send photos and measurements before ordering.
NOTE: The o-ring goes on the housing,
and is the seal for the Cap once it's threaded on to the housing.
Measurements of the o-ring are O.D. = 2 3/8" with I.D. of 2 1/8" and width = 1/8" in thickness.
Also used as Fleck 14679