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| American Plumber Please use this forum to ask specific questions about American Plumber brand replacement water filters. |
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| 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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