TH Marine Thru Hull Scupper (HN)
The flapper is molded of a flexible thermoplastic thast is totally impervious to the effects of sun and chemicals.
These flappers will not curl up, rot or lose their sealing ability.
This thru-hull type scupper is barbed to fit 1-1/2¨ID hose
The threaded portion accommodates hulls up to 3-1/2¨ thick.
Mounting nut is included.