Coupling Fitting; Type Flexible; Applicable Standard UL, ULC, FM, LPCB, VdS; Size A 3"; Size B 3"; End Connection Grooved x Grooved; Material Ductile Iron; Material Specification ASTM A536 Grade 65-45-12; Process Cast; Finish Orange Painted; Pressure Rating 500 PSI; Temperature Rating -34 to 110 Deg C; Gasket Supplied Yes; Gasket Details Grade E Green Stripped EPDM; Application Hot Water, Dilute Acids, Oil Free Air, Chemical, Petroleum; Lead Free; Outer Diameter 3.5"; Maximum End Load 4811 Lb; Maximum End Gap 0.13"; Bolt Size 1/2" Diameter x 3" Length; Weight 3.1 Lb; Warranty 10 Year Limited