Image D-Series Pneumatic Automatic Push-Loc Hose Barb Coupler Markets Agriculture & Forestry, Steel Processing Jump to Section Product Options Related Products Product Options Part Number Length Maximum OD Body Size Hose ID Material 2DB2-B 2.76" (70.1 mm) 0.98" (24.9 mm) 1/4" 1/4" Brass 2DB3-B 2.77" (70.4 mm) 0.98" (24.9 mm) 1/4" 3/8" Brass 3DB3-B 2.82" (71.6 mm) 1.18" (30.0 mm) 3/8" 3/8" Brass 4DB4-B 3.31" (84.1 mm) 1.34" (34.0 mm) 1/2" 1/2" Brass Related Products Image D-Series Pneumatic Automatic Standard Hose Barb Coupler Image DF-Series Pneumatic Push-Loc Hose Barb Plug Image DF-Series Pneumatic Standard Hose Barb Plug Image F-Series Pneumatic Manual Push-Loc Hose Barb Coupler Image F-Series Pneumatic Manual Standard Hose Barb Coupler