Presto(r) Pressure Cooker Sealing Ring (09909)

For Presto 2-1/2, 3, & 4 Qt. Mfg. No. 40, 103, 104, 204, 402, 403, 404, 412, A401, A403A, A403AD, A403AT, A409, A410A, A411A, A412A, A413A, KEO2A, KEO2AT, PBO1A, PBO5A, PBO7A, /01/PCC4, 01/PCC4A, 01\PCC4D, 01/PCD4AD, 01/PCD4H, P1/PCE4, 01/PCE4A & 01/PCE4H Sealing with air vent