PRESTO GASKET RING. Sealing ring fits around inside rim of cover and forms a pressure-tight seal between cover and body during cooking. Fits 2-1/2 quart No.40; 3 quart Nos.103 and 403; 4 quart Nos.40, 104, 204, 404, A401, A403A, A403AD, A403AT, A414A, A409, A410A, A411A, A412A, A415A, A413A, A416A, KE02A, PB01A, KE02AT, PB05A, PB07A, 01/PCC4, 01/PCC4A, 01/PCD4, 01/PCC4D, 01/PCC4H, 01/PCD4H, 01/PCE4 and 01/PCE4A; and 6 quart No.40.