Heavy duty construction. For both commercial and pleasure boat use. Totally submeersible and ignition protected, to all existing safety standards BIA, NMMA and ISO/EC regulations. Water cooled motors for long life, with anti airlock design and exclusive Rule moisture tight seals. Snap-lock strainer base for easy installation and removal, and silent vibration free running. No burn out if run dry. Stainless Steel Shaft. Height: 84mm (7 1/4") Weight: 1332 grms Width: 124mm (4 7/8") Hose Diameter: 30mm (1 1/8") Current: 12V/20A