ZK1 Flow Sensitive Unloader 10.8 GPM 3600 PSI 1/2" BSP Male Outlet pressure washer plumbing Use medium Thread Lock to

Use medium Thread Lock to install the quick connect fittings

Kit 2189 Water Seals RSV

Should you require a coupler

install a new pump easily

reinforcement: high tensile strength textile cord

ZK1 Flow Sensitive Unloader 10.8 GPM 3600 PSI 1/2" BSP Male Outlet pressure washer plumbing Use medium Thread Lock toZK1 Flow Sensitive unloader 10. 8 gpm 3600 psi 1 2" BSP M out. The General Pumps newest flow sensitive or flow actuated unloader, the ZK1, is rated for a maximum volume of 10. 8 GPM and a discharge pressure of 3600 psi. This unloader also offers a compact design and can be rebuilt from the top without disturbing surrounding plumbing. The ZK1 is a soft start unloader offering gradual pressure increases, assuring safety for the operator and the pump.