"This deluxe insulated, 4-finger pistol grip pressure washer spray gun gives you full control while reducing trigger finger fatigue. Safety-off trigger lock. Rear entry design means hose enters pistol grip for easier handling. 3/8in. female inlet, 1/4in. female outlet. Brass internal parts. Maximums 4000 PSI, 300F and 8 GPM. Color of trigger may vary. Female Inlet in. 3/8, Female Outlet in. 1/4, Max. Temperature F 300, Max. PSI 4,000, GPM 8. Safety-off trigger lock brass internal parts Enables hose to enter pistol grip for easier handling 3/8in. female inlet, 1/4in. female outlet Maximums 4000PSI, 300F and 8 GPM"