Couplers & Plugs 3/8 STEEL COUPLER PLUG .50 Learn More 1/4 STEEL MALE COUPLER .50 Learn More 1/4 STEEL FEMALE COUPLER .50 Learn More 1/4 STEEL FEMALE COUPLER .00 Learn More 1/4 STEEL MALE COUPLER .25 Learn More 1/4 STEEL COUPLER .00 Learn More 1/4 STEEL FEMALE COUPLER PLUG .50 Learn More 1/4 STEEL FEMALE COUPLER PLUG .50 Learn More 1/4 STEEL FEMALE COUPLER PLUG .50 Learn More 1/4 MALE HOSE BARB COUPLER PLUG .50 Learn More 1/4 STEEL MALE COUPLER PLUG .50 Learn More