Twin Port Pumps. 750 GPH. Offers the convenience of using only one intake for both the livewell and raw water wash down pump.. The 3/4" tapered inlet connects directly to the sea cock and the upper outlet port provides a continuous flow of water through the 3/4" discharge to the livewell while the lower outlet port connects to the wash down pump through either a 1/2" or 3/4" ports.. High pressure inlet seal easily handles the higher pressures created by high speed pickups commonly used.