Beckson Marine's Newport Self Drain Opening Ports
Beckson Marine’s Newport Self Drain Opening Ports have an angled, molded-in drainage ramp to channel away water, while still providing room for through-bolts to ensure a secure installation. The ports work best when mounted within 15 degrees of vertical and prevent the mini waterfalls that can occur when you open a port after a heavy rain. For more dramatically angled applications, Beckson offers what it calls its Rain Drain ports. Both port styles are available in sizes from 3in-by-10in to 7in-by-14in.
From $123. Beckson Marine