Adjustable Thru-Hull Scupper
Molded White Polymer
Recessed Soft Black Flapper
Designed for Surface Thickness from 2 inches to 4-3/4 inches
Female portion of scupper can be cut down by one rib for each 1/4 inch difference between hull thickness and 4-3/4 inches
I.D. Inches: 1-11/32"
O.D. Flange: 2-15/16"
Mounting Hole Diameter: 1-13/16"