The Rule Mate RM1500A is a powerful 1500 GPH pump with a highly intelligent circuit board. This pump will activate when the water reaches 2-3/4" and shut off once the water is no longer being sensed (5/8"). This pump has the built in programming to sense when the pump is running but yet not pumping any water . If any debris fouls up the sensor or the pump or even becomes air-bound the pump will go to off mode and start the regular 2-1/2 minute cycles. Specifications: 12V 25GPM and 1500 GPH 1" NPS discharge with 1" and 1-1/8" screw on ports All in one pump & Switch
