Angled Design: Features an angled housing profile to assist with deck and transom drainage applications. One-Way Flapper Valve: Fitted with an internal flapper assembly secured with a top screw to help limit backwash. Molded Nylon Housing: Built with a black nylon body engineered for outdoor and marine drainage setups. Pre-Drilled Mounting: Outer flange includes four recessed mounting holes for secure surface fastening.