By Waterway
Part # 4742-156
Manufacturer Code 805-0442
Dimensions 7-1/4" ID, 1/4"
Alternate Part #'s 805-0442, 8050442, 90-423-5442, APCO2426
O-ring, MPV/Body - 805-0442
Part #4742-156 (o ring for smart clean filter) shows 2 alternate numbers, 805-0442 and 8050-0442. One ring is thicker and slightly smaller.. which number corresponds to which ring?
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Hi, Bill. Both part numbers are the same o-ring. One does not mean one is thicker than the other.
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