Perko 0343DP Adjustable Thru-Hull Scupper – Fits Hull Thickness 2” To 4-3/4”, 1-11/32” ID, White Polymer With Black Flapper

Boating folks, this one’s for you. The Perko 0343DP is an adjustable thru-hull scupper made from tough white polymer, with a recessed black flapper to keep water flowing the right way. It’s designed to fit hull thicknesses from 2 inches up to 4-3/4 inches—and you can trim down the female portion if needed. The inner diameter is 1-11/32”, and it mounts into a 1-13/16” hole. Important note: don’t use it below the waterline. Ideal for deck drainage, bilge outlets, or general marine use where you need reliable water flow without leaks. Easy to install, durable, and built to handle the marine environment. A straightforward solution for keeping your boat dry and functional.