Balcrank Premium Series Booster Grease Control Handle with Z-swivel features an all-steel construction and forged valve body, with 1/4 NPT(F) threads on the control handle body and the Z-swivel. This severe-duty, boosting handle provides precise, proportional trigger action with a 6" curved extension stem and hydraulic coupler. An inlet screen is also included, and 10,000 PSI can be obtained on boosting models by pumping the hand trigger, though not with whip hoses.