Sdv40-A44A(2500)-4Xdv3-Sa3-Tr44 Inlet 1 Npt Ports At Side & Top With Mrv Installed Pre-Set At 2500Psi. 4 Sections, D/A, Cylinder Spool, Metering Air Shift, Spring Return, 3/4 Ports. 1 Section, S/A, Cylinder Spool, Spring Return, 3/4 Ports. Outlet 1 Npt Ports At Side & Top.