Thru-Hull with Scupper Valve – Injection Molded Acetel
This Thru-Hull Scupper Valve mounts through the transom and provides a water exit for boats with self-bailing cockpits. Ideal for above the water line drainage. Valve features a soft black flapper that seals to prevent backwash. For use with 1-1/2″ hose. Compatible with most self-bailing applications. Constructed of injection-molded acetal. Installs with four 6 FH fasteners (included).
![Sea-Dog Thru-Hull w/Scupper Valve – Injection Molded Acetel [520510-1]](https://www.bestdailypetsupply.com/wp-content/uploads/2026/09/sea-dog-thru-hull-w-scupper-valve-injection-molded-acetel-520510-1.webp "sea-dog-thru-hull-w-scupper-valve-injection-molded-acetel-520510-1")
![JL Audio MVI Series 700w 5 Channel Amplifier w/Integrated DSP – MV700/5i [010-03340-00]](https://www.bestdailypetsupply.com/wp-content/uploads/2026/09/jl-audio-mvi-series-700w-5-channel-amplifier-w-integrated-dsp-mv700-5i-010-03340.webp "jl-audio-mvi-series-700w-5-channel-amplifier-w-integrated-dsp-mv700-5i-010-03340")
![JL Audio XDM Series 200w 2 Channel Amplifier – XDM200/2 [010-03114-00]](https://www.bestdailypetsupply.com/wp-content/uploads/2026/09/jl-audio-xdm-series-200w-2-channel-amplifier-xdm200-2-010-03114-00.webp "jl-audio-xdm-series-200w-2-channel-amplifier-xdm200-2-010-03114-00")
![JL Audio XDM Series 500w 3 Channel Amplifier – XDM500/3 [010-03343-00]](https://www.bestdailypetsupply.com/wp-content/uploads/2026/09/jl-audio-xdm-series-500w-3-channel-amplifier-xdm500-3-010-03343-00.webp "jl-audio-xdm-series-500w-3-channel-amplifier-xdm500-3-010-03343-00")