PSV UNF 21/D195-2 -A 2 H 16/16 A 103 B 103S 1/EA/UNF 2 -A 2 H 16/16 A 103 B 103S 1/EA/UNF 2 -A 2 H 16/16 A 103 B 103S 1/EA/UNF 2 -A 2 H 16/16 A103 B 103S 1/EA/UNF 2 -A 2 L 16/16 A 175 B 175S 1/EA/UNF 2 -A 2 L 16/16 A 175 B 175S 1/EA/UNF 2 -E 19 UNF-G 12 ( Proportional Spool Valves