Select a Product Part NumberMaterialSealSize DB5-400-3501Aluminum body, Stainless Steel DiskWhite Buna5" DB4-400-3501Aluminum body, Stainless Steel DiskWhite Buna4" DB5-400-1500Aluminum body, Iron DiskBlack Buna5" DB3-400-3501Aluminum body, Stainless Steel DiskWhite Buna3" DB4-400-1500Aluminum body, Iron DiskBlack Buna4" DB3-400-1500Aluminum body, Iron discBlack Buna3"