GUN, SHUTOFF, HOTSY BLACK 3625 PSI Hotsy Pacific Sale! from $81.00 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Designed exclusively for Hotsy to meet the demands of the highpressure cleaning professional. PSI: 3750 GPM: 12 Temperature: 300°F 3/8" FPT inlet x 1/4" FPT outlet Weight: 24 oz.