Thread: OR-100 American Plumber, Culligan, Pentek for Big Blue Housings
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Old June 26th, 2009,
blyache blyache is offline
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Join Date: Jan 2008
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Default OR-100 American Plumber, Culligan, Pentek for Big Blue Housings
I got this notice to change the O rings. The big blue unit I have has two O rings and is slightly larger then the ones below. Do you have any that may fit the unit? I have no idea what brand it is, it has no marking on it other then it's short fat and blue.

(OR-100 American Plumber, Culligan, Pentek OR-100 O-Ring for Big Blue Housings). Please advise.
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