The sealing ring fits around the inside rim of the cover and forms a pressure-tight seal between the cover and the body of the pressure cooker during cooking. This sealing ring will directly replace your existing ring. The kit includes the sealing ring and a replacement rubber over-pressure plug.
For Presto 3 Quart and 4 Quart cookers
For use with model nos.50(4 quart version), 60(4 quart version), 603 and 604