The Rule 360 submersible bilge pump is ideal for small craft. This new design features a vented body, helping to protect against air locks and a thread port making it easy to install or remove for cleaning. The threaded port includes a check which prevents back flow and helps to leave to leave the minimum amount of water in the bilge. Features Light, compact pump for ski-boats and small vessels. Tough plastic body with integral strainer. Quick release inlet strainer allows rapid cleaning. Low amp draw conserves batteries. Built-in Thermal Cut-Off. Motor rated for 1500-hour life. Check Valve included for Back Flow Prevention. Vented body to prevent air locking. Threaded port for easier installation and maintenance. Specifications Connections: For 19mm (3/4") bore hose. Dimensions: 99mm high, 64mm x 74mm. Current Draw: 1.6(amps) Fuse Size: 2.5(amp) Output: Up to 31 litres/minute (7 gallons/minute) without check valve. Head:Max. recommended discharge head 2m.