Designed as a water exit for boats with self-draining cockpits. Scupper mounts over flush transom drains above the waterline. The rubber flapper opens to dump water out and closes to prevent backwash. Tough acetal mount flange.

BLA CodeDiameter OD mmID mmMount Screws mm
13881470384 c/s
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Valves, Skin Fittings & Tails