... , Bend, Reducer, Coupling, Elbow, Tee, Cross, Ductile Iron Grooved Fittings With ASTM A536 standard, Including Coupling, Adaptor, Bend, Reducer, Coupling, Elbow, Tee ... , Mechanical Cross cap...etc with superior quality and comeptitive price with FM and UL approved.Material: Ductile iron in ASTM A536 standardSize: from ...