Sdv70-A44A2-4Xhda419-Tr55 Inlet 1 Npt Ports At Side & Top With Mrv2 Installed Preset At 2500Psi. 4 Sections, Hi-Boy, Cylinder Spool, Spring Return,1 Npt Ports. Port A With Anti-Cavitation Relief Preset At 2500Psi, Port B Plugged. Outlet 1-1/4 Npt Ports At Side & Top.