Sdv40-A88A-3Xhdv791-Tr88 Inlet Sae-16 Ports At Side & Top With Mrv Installed Preset At 2000Psi 3 Sections Hi-Boys D/A Cylinder Spools Metering Air Shift Spring Return Sae 12 Ports Relief Port A Plugged Port B Relief With Anti-Cavitation Preset At 2500Psi Outlet Sae-16 Ports At Side & Top