Perko 1190DP0CHR 12V Marine Watertight Deck Connection
Watertight Deck Connections - Rated for 15 amps at 12, 24, and 32 volts polarized double contact connector. Chrome-plated zinc. Flange gasket with integral waterproof cap for base when plug is removed. Features diameter 1-5/8 inch height 1-3/16 inch screw size 4.