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Jul 10, 2020 - 06:30 AM
The OR-38 inside diameter is 3-3/8", outside diameter is 3-3/4". This will work with any 3.5" diameter housings.
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Jul 10, 2020 - 06:30 AM
View all Culligan OR-38 Exterior Pre-Tank Replacement O-Ring Questions & Answers
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