This 1 1/2 in. twist lock universal coupler is made of malleable iron and comes complete with safety clip and lanyard. These hose barbs with 4 claws
Stainless Coupling
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China Lock Type Air Hose Coupling Fitting, Lock Type Air Hose
Milton 1-1/2 in. Hose Barb Twist Lock Universal Coupler (Box of 10) 1862-12 - The Home Depot
Milton 1-1/2 in. Hose Barb Twist Lock Universal Coupler (Box of 10) 1862-12 - The Home Depot
Iron - Tools - The Home Depot
Milton Industries, Inc.: Twist Lock Universal