Schrader Twist-Lock Hose Barb Coupler SKU Body Size Hose ID Length HFTL-251-04HB 1/4 1/4 2.54 HFTL-251-06HB 1/4 3/8 2.67 HFTL-501-06HB 1/2 3/8 2.99 HFTL-501-08HB 1/2 1/2 4.23