All-electric pressure washers are ideal for indoor cleaning KSrcher's line of pressure washers generate instant hot water spray at the pull of a trigger, without an open flame or hazardous fumes. It runs so quietly it can be installed inside a closet or under a stairway. Both models in the series have a cleaning power ranging from 3.5 to 4.2 GPM (gallons per minute) and from 2,000 to 3,000 PSI (pounds per square inch) of pressure. The washers operate on 460V, 3-phase electrical power. Low-water protection prevents damage to the nine 4500KW heating elements should the water level in the tank drop too low.