Rule Shower Drain Box w/1100 GPH Pump - 24V

The Rule Shower Drain Box with 1100 GPH Pump – 24V is a compact, automated bilge and gray-water management system engineered for vessels requiring reliable, unattended water extraction. Operating at 1100 gallons per hour (4164 liters per hour), this 24-volt pump delivers the flow rate necessary to handle shower drainage, sink runoff, and bilge collection on mid-sized cruising boats, fishing vessels, and live-aboard sailboats where space and power efficiency matter.

The system operates via an integrated float switch that automatically activates the pump as water accumulates in the tank and shuts it down when the basin empties—eliminating the need for manual operation or constant monitoring. Three inlet ports provide flexible hose routing configurations, allowing the unit to integrate seamlessly into existing plumbing layouts. An easy-access internal strainer prevents debris from damaging the pump impeller, reducing maintenance intervals and extending service life. The quick-release tank lid simplifies cleaning and inspection, while the compact 10 × 6 × 14-inch footprint fits tight engine room and galley spaces typical of smaller to mid-range vessels.

This pump is engineered for cruisers, fishing boat operators, and liveaboards who need hands-free water management without the power draw of larger AC-based systems. The 24-volt DC specification aligns with standard marine electrical architecture found on trawlers, center consoles, and extended-range sailboats. Weekend recreational boaters and serious offshore anglers alike benefit from the reliability and simplicity of a dedicated shower drain system that prevents bilge contamination and reduces manual pumping labor during multi-day passages or extended anchorages.