Is the diameter inside or outside diameter to know what size to get (Hepvo BV1B/UA11/4 Hygienic Self Sealing Waste Valve

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Aug 27, 2019 - 04:18 AM

PVC pipe is normally measured/labeled by the ID. Commonly the 1-1/4" would be used in the lavatory and the 1-1/2" kit would be used under the sink or by the dishwasher(if applicable), but your set up could be different. I will link both of these kits below for you.

1 1/4": https://www.rvupgradestore.com/HepVo-...

1-1/2": https://www.rvupgradestore.com/Hepvo-...

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Is the diameter inside or outside diameter to know what size to get

Hepvo BV1B/UA11/4 Hygienic Self Sealing Waste Valve - 1 1/4''

The Hepvo BV1B/UA11/4 innovative hygienic self-sealing waste valve 1 1/4' replaces the old p-trap and prevents the escape of foul grey water odors from your RV waste tank. No siphonage, no noise, no smells! The unique dry sealing valve prevents the escape of those odors and eliminates the need f... See More

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Is the diameter inside or outside diameter to know what size to get Hepvo BV1B/UA11/4 Hygienic Self Sealing Waste Valve - 1 1/4'' RV Plumbing

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