24V Rule Bilge Pump 3700GPH Very high capacity extra heavy duty DC electric bilge pump. Fully submersible 3700 GPH - 233 litres per minute Heavy-duty water / air cooled motor Teflon seals and stainless steel shaft Ignition protected - won't create a spark Can run dry for short periods 184mm height x 124mm wide Hose outlet suits 38mm (11/2") 6.9 amp draw @24v DC Pumps a massive 3700 US gallons per hour - 1 gallon per second at open discharge Extra heavy-duty motors and are designed to built to give years or reliable service Ideal pump for surf pumps, large pleasure boat and commercial craft Super reliable, commercial quality construction and performance Easy to replace snap-on strainer base ensures ease of cleaning and fitting Stainless mounting screws and a clip to secure a float switch to the pump if required This pump is non-automatic, meaning it requires a Rule float switch (RWB19 or RWB98) to operate automatically