Vacuum System Accessories Vacuum Hose Barb Fittings Item #: A1414B These smooth single barbed are designed exclusively for vacuum and are not suitable for compressed air. Multiple barbed versions can handle both vacuum and pressure. Item No. Description Item Weight oz. (grams) Vacuum Hose Clamps for Hose A1414B Hose Barb, 1/4″ NPT X 1/4″ (6.4 mm) Hose 0.6526 (18.5)