1/2" Female NPT inlet. Specifically designed to prevent accidental spray. Durable dark blue cover design prevents front-mounted lever from being accidentally activated if nozzle is dropped. Design also reduces hand fatigue and offers smooth lever action. Trigger locking mechanism provides safe and secure method of keeping the nozzle open during any spray pattern. Variable spray patterns, from fan spray to solid stream. Drip-free automatic shut-off feature. Rated to 150 psi/200 degree F. 9.6 GPM flow capacity at 100 PSIG.