Back Home / Pipe & Tube Fittings / Brass Fittings / PRESTOMATIC BRASS UNION ELBOW 3/8″ TUBE PRESTOMATIC BRASS UNION ELBOW 3/8″ TUBE SKU: X165PMTX6 Categories: Brass Fittings, Pipe & Tube Fittings These are the quick disconnect version of nylon air brake (DOT) brass fittings. They are DOT approved and will be marked as such. Used with SAE J844 nylon tubing, no special tools required. There are no nuts or sleeves used in their application. Union elbow Case Quantity: 1 Log In For Pricing