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 2.5 Quart and 4 Quart cast aluminum cookers
For use with model nos. 40, 103, 104, 204, 403, 404, A401, A403A(PCC4H), A403AD(PCD4) etc