Coupling Fitting; Type Flexible; Applicable Standard UL, ULC, FM, LPCB, VdS; Size A 6"; Size B 6"; End Connection Grooved x Grooved; Material Ductile Iron; Material Specification ASTM A536 Grade 65-45-12; Process Cast; Finish Orange Painted; Pressure Rating 450 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 6.625"; Maximum End Load 15512 Lb; Maximum End Gap 0.25"; Bolt Size 5/8" Diameter x 3-1/4" Length; Weight 7.1 Lb; Warranty 10 Year Limited