An automatic-switch bilge pump is a requirement for any vessels 20’ and over with sleeping accommodations, but is a great convenience for any size boat. The Sahara has everything contained in one compact yet durable package – pump, wire seals, strainer, and mercury-free switch – and installs quickly and easily in tight spaces. Pumps include 36” lengths of 16-gauge caulked and tinned copper wire.S750 is sized for larger recreational boats. Our most powerful 3/4”-outlet automatic pump. 750 GPH* at open flow, 625 GPH* at 3.3’ head. 3/4″ hose outlet.