HV1030LS Manual Spreader Valve for Load Sense systems. Dual Flow Control with built-in bypass valve (manual lever) and system relief valve. Independently controls speed of auger and spinner, with one shutoff lever for both. Detented hand knob for each flow control. Pressure compensated, 40 GPM max inlet flow. 10 GPM max spinner, 30 GPM max auger-chain. #12 SAE bottom ports, #6 LS, drain ports.