Standard/Approvals: ASTM A 536 Grade 65-45-12 and ASTM A36 End Ring, ASTM D2000 MBA 710 Gasket, AWWA C111 Bolt and Nut, Meets AWWA C219
INCLUDES: 4 in L Ductile Iron Center Ring, Ductile Iron End Ring, (2) 3-1/2 in Styrene Butadiene Rubber Gasket, (4) 1/2 x 6 in 5/8 in UNC Rolled Thread Bolts and Nuts