Product Information Material: Ductile Iron Select a Product Part NumberSealNominal SizePipe OD H32BUBuna-N2"2.375" H325EPDM2-1/2"2.875" H33BUBuna-N3"3.50" H315BUBuna-N1-1/2"1.90" H34BUBuna-N4"4.50" H315EPDM1-1/2"1.90" H325BUBuna-N2-1/2"2.875" H33EPDM3"3.50" H34EPDM4"4.50" H32EPDM2"2.375" H36EPDM6"6.625" H36BUBuna-N6"6.625"