Image DF-Series Pneumatic Push-Loc Hose Barb Plug Markets Agriculture & Forestry, Steel Processing Jump to Section Product Options Related Products Product Options Part Number Body Size Length Maximum OD Hose ID Material D2B2-B 1/4" 2.09" (53.1 mm) 0.69" (17.5 mm) 1/4" Brass D2B3 1/4" 2.09" (53.1 mm) 0.86" (21.8 mm) 3/8" Steel D4B4 1/2" 2.67" (67.8 mm) 0.75" (19.1 mm) 1/2" Steel Related Products Image D-Series Pneumatic Automatic Push-Loc Hose Barb Coupler Image F-Series Pneumatic Manual Push-Loc Hose Barb Coupler Image F-Series Pneumatic Manual Standard Hose Barb Coupler