Replacement sealing ring fits these Presto pressure cooker models: early models 40 (6 qt), 106, 206, 406 and A601; and these 6 qt cast aluminum models: A603A (PCC6), A603AD (PCD6), A603AT (PCCT6), A605A, A605B, A607, A608 (PCP6), A610A (PCC6H), A611A (PCC6A), A612 (PCD6A), A613 (PCD6H), A614A (PCD6), A615 (PCD6A), A616, A617, A618, A619A, A620A, A621A, A622, A623, KE03A, KE03AT, PB02A, PB06A, PB08A, PB09A, PB10A, PB10A, PB11A, 01/PCC6, 01/PCC6A, 01/PCC6AD, 01/PCC6AM, 01/PCC6D, 01/PCC6H, 01/PCC6HD, 01/PCC6HM, 01/PCE6, 01/PCE6A, 01/PCE6H, 02/PCE6H. Origin: China