ZE1536A - Hi-Pressure Grease Booster Control Nozzle 10,000 PSI is a nozzle designed for dependable use with Goat Pumps fluid-transfer equipment and compatible setups. This high-pressure grease booster control nozzle continues-flow control handle for air-operated grease systems. This is a booster handle, so each pull of the handle increases pressure up to 10,000 PSI. It comes with a 1/8-inch NPT inlet and outlet and a heavy-duty 3-jaw coupler (ZE25SP) and is constructed out of aluminum.