Replacement sealing ring fits these Presto pressure cooker 3 qt and 4 qt cast aluminum models: 40 (2-1/2, 4), 103, 104, 204, 403, 404, A401, A403A (PCC4), A403AD (PCD4), A403AT (PCCT4), A407, A409 (PCP4), A410A (PCC4H), A411A (PCC4A), A412A (PCD4A), A413A (PCD4H), A414A (PCD4), A415A (PCD4A), A416A (PCD4H), KE02A, KE02AT, PB01A, PB05A, PB07A, 01/PCC4, 01/PCC4A, 01/PCC4AD, 01/PCC4AM, 01/PCC4BD, 01/PCC4D, 01/PCC4H, 01/PCC4HD, 01/PCC4HM, 01/PCE4, 01/PCE4A, 01/PCE4H. Origin: China Presto Part Number: 09909. Helpful Hint: To ensure you get the right sealing ring, please check the model number on your Presto cooker.