Allied Medical LLC 11-20-0012 is a precision-engineered Dyna-Con style quick-connect coupler designed for dedicated nitrogen service. It features a 1/4" hose stem (barb) for direct and secure attachment to flexible high-pressure pneumatic tubing. Built from chrome-plated brass, this coupler ensures a leak-proof connection to nitrogen wall outlets while maintaining high-flow performance. The gas-specific keyed design prevents accidental cross-connection, ensuring clinical safety in surgical and trauma environments.