Deluxe 4000 PSI 7 GPM Pressure Washer Gun and 28in. Wand & Couplers by | Jul 22, 2026Wand: Inlet: 1/4″ NPT-M, Outlet: 1/4″ Quick Connect for Nozzles. Wand & Couplers. Wand: 28 in. Deluxe: Inlet: 3/8″ Male Plug, Outlet: 1/4″ female. Pressure Washer Tools. Deluxe: Inlet: 3/8 in. Male Plug, Outlet: 1/4 in.