Rules Standard Series Bilge Pump has the longest life and highest pumping power in the industry, making it the world leader. Our bilge pumps provide 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 new series of bilge pumps. Our pumps are tested to the highest standard, achieving rated performance at 12-Volt vs 13.6-Volt, resulting in higher flow with better efficiency for the toughest applications. Rule brand builds on over 50 years of operational excellence and application expertise with a broad range of solutions for the marine industry.