JOHNSON PUMP 07503-00 500 GALLONS PER HOUR BILGE PUMP WITH ULTIMA SWITCH

500 GPH ULTIMA COMBO AUTOMATIC CARTRIDGE BILGE PUMP - Equipped with the sealed Ultima Switch water level sensor for automatic operation. 12VDC. Includes both a 3/4" straight and a 90° smooth elbow Dura-Port as well as a removable check valve to eliminate stress cracking caused by over-tightened hose clamps. Turns on at 2" water level and off at 3/4" water level. Free and easy flow, non-clogging design. Compact 4.4" height. Simple to install and with the removable motor cartridge feature are easy to clean and service.