Shark 87502470 Trigger Gun, 4000 PSI, 7-GPM Insulated for operator protection Fatigue-free design to alleviate numbing effect of continuous power washing Shark offers the highest quality trigger guns able to withstand pressures of up to 5000 psi. Withstands pressures up to 4000 PSI Gpm: 7 and temp ratng: 250f