D03 hydraulic valve 3 station series circuit manifold. 6061-T6 aluminum rated for 3000 PSI. #10 SAE pressure port, #12 SAE tank return port, #8 SAE A & B ports and #4 SAE gauge port. Series circuit manifolds work with open center valves, i.e tandem center or all ports open in the center position. Overall length is 6.70". WILL NOT WORK WITH CLOSED CENTER VALVES OR VALVES THAT HAVE THE PRESSURE PORT BLOCKED IN THE CENTER POSITION. Stock photo for illustration purposes.