Universal Couplings Neoprene Washers -- Air Fittings

Blank Ends Malleable Iron -- Universal Coupling

$7.25

1/2" Male NPT Ends Malleable Iron -- Universal Coupler

$8.00

Universal Couplings Rubber Washers -- Air Fittings

$0.40

1/2" Female NPT End Malleable Iron -- Universal Coupling

$6.60