Metro D1DT2H, 8 GPM valve small enough for yard tractors, small machinery. Used as tipper valves on many refuse trucks. Precision fitted, chromed spool, integral load check, adjustable relief, reversible handle. Inlet and outlet are on end of casting. Many other versions available, including 2 and 3 spool models. All ports SAE #6 (9/16 O-ring).