Rule 3700 GPH General Purpose End Suction Centrifugal Pump - 24V [18A]3700 GPH General Purpose End Suction Centrifugal Pump 24V The Rule General Pupose Pump is designed 1 1 2" (38mm) inlet and 1 1 2" (38mm) discharge outlet. The Rule General Purpose Pump must be mounted below the waterline. It does not deliver high pressure, nor is it self priming. It delivers lots of water but at low pressure. 24 volts DC. Features: 3700 GPH 24 Volt White Red 3 Year Warranty WARNING: This product can expose you to chemicals including