Created with GIMP

1/2" air lines. Polyconn air manifold: 1/2" NPT in, 1/2" NPT out, four 3/8" NPT ports (three plugged). Prevost 3/8" NPT male to 1/4" industrial safety coupler. Milton aluminum regulator and filter. Black iron drip leg with ball valve.

Polyconn air manifold: 1/2" NPT in, 1/2" NPT out, four 3/8" NPT ports. Prevost 3/8" NPT male to 1/4" industrial safety coupler. Brass 3/8" NPT male plugs.

Polyconn air manifold: 1/2" NPT in, 1/2" NPT out, four 3/8" NPT ports. Prevost 3/8" NPT male to 1/4" industrial safety coupler. Brass 3/8" NPT male plugs.

Milton aluminum regulator and filter

Norgren 17-016-107 drip leg automatic drain, 1/2" NPT