RULE BILGE PUMP 1100 GPH 24V NON-AUTOMATIC SUBMERSIBLE This bilge pump provides ultimate pumping performance, which helps keep your bilge clear of nuisance water, building on the genuine Rule design. Rigorous engineering and testing helped generate the DA series of bilge pumps. This pump is tested to the highest standard, achieving rated performance at 12V vs. 13.6V, resulting in higher flow with better efficiency for the toughest applications. Higher Flow optimized impeller to provide greater flow at the same amperage Built-in Thermal Cut-Off (TCO) provides added protection for pump and vessel Back Flow Prevention reduces the amount of water left over in the bilge, reducing odor and helping keep your bilge cleaner Hidden Air Vents in the Body helps prevent air locking in challenging plumbing installations and helps with the check valve Threaded Discharge easier installation, easier maintenance.