This O ring is used for Big Blue 10″ and 20″ long heavy duty housings by: Pentek, Culligan, Ametek, US Filter, Plymouth, Kleen Plus, American Plumber, Liquatec, Hydronix, as well as most others. O ring has a 5 3/4″ diameter and is Buna-N FDA grade.
-36%
Big Blue O Ring
$2.56 Save:$1.00(36%)
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