Made from molded white polymer, this adjustable thru-hull scupper from Perko is exactly what you need for your boat! It has a recessed soft black flipper to prevent back wash, and is designed for surface thickness between 2" and 4-3/4". The female portion of the scupper can be trimmed down by one rib for each 1/4" difference between hull thickness and 4-3/4".
Specifications:
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Other Details
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