The Reed 08177 DPHTP500 Hydrostatic Test Pump uses a cordless or ½″ corded drill (18 V, 1500 RPM—drill not included) to power testing of residential or commercial water systems. It delivers up to 500 psi (34 bar) at 1.3 GPM (4.5 L/min) and includes a 15-ft high-pressure hose with a quick-disconnect. Lightweight (~8.5 lb / 3.9 kg) and self-priming, stored neatly in its case.