PSL UNF 21/D230-2 -A 1 H 40/40/EA/UNF 2 AL-0-A 4/175-BL-0-A 4/175 -A 2 H 25/25/EA/UNF 2 AL-0-A 4/175-BL-0-A 4/175 -A 2 H 25/25 A 20 B 200/EA/UNF 2 AL-0-A 4/175-BL -0-A 4/175 -A 2 H 25/25 A 200 B 200/EA/UNF 2 AL-0-A 4/175-BL -0-A 4/175 -A 2 H 25/25/EA/UNF Proportional Spool Valves