My account dashboard
Specified Fittings Backing Ring, 3 in Nominal Size, 4-3/4 in Inside Dia, 9 in Outside Dia, 0.55 in Thickness, 8 Bolt Holes, 4-1/2 in Bolt Hole Size, Flange Connection, 200 psi, 150 lb, SDR 11, Ductile Iron, Epoxy Coated