Dixon SHD-Series Schrader Twist-Lock Hose Barb Coupler SKU Body Size Hose ID Length 2SHDS2 1/4 1/4 2.54 2SHDS3 1/4 3/8 2.67 4SHDS3 1/2 3/8 2.99 4SHDS4 1/2 1/2 4.23