Connections: For 19mm (3/4″) bore hose. Dimensions: 107mm high, 64mm x 74mm. Current Draw: 1.6(amps) Fuse Size: 4 amp Output: Up to 31 litres/minute (7 gallons/minute) at 12v, without check valve. Max. recommended discharge head 2m. Fully automated bilge pump with computerised operation. Tough plastic body with integral strainer. Quick release strainer allows rapid cleaning. Low amp draw conserves batteries. Checks for water every 2 1/2 minutes (Runs for 1/2 second) Consumes 0.20 amps per day Built-in Thermal Cut-Off. Check Valve included for Back Flow Prevention. Vented body to prevent air locking. Threaded port for easier installation and maintenance. No Need for separate float switch, third wire for manual override. Base not interchangeable with old range but can be fitted to existing screw holes.