Perko Scupper Thru-hull 1-1/2" with soft black flapper for mounting through transom

Thru-Hull Scupper for Mounting through Transom
Molded White Polymer
Soft Black Flapper
Nut and Mounting Hardware Included
For Hose Sizes: 1-1/2"
Max. Hull Thickness: Up to 2-1/8"
Mounting Hole Diameter: 1-7/8"
O.D. Flange: 2-7/8"

NOTE: The Above Thru-Hull Connections For Use With Hose Are Not Recommended For Use Below The Waterline Per A.B.Y.C. "Safety Standards For Small Craft" Section H-27.