Balcrank Premium Series Booster Grease Control Handle features an all-steel construction and forged valve body with 1/4 NPT(F) threads. 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.