Presto 09936 Pressure Cooker Sealing Ring/Overpressure Plug Pack 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 or canning. When installing a sealing ring, work it into the cover in four small sections, for example, top, bottom, left and right. Work it into the groove a small section at a time until it is fully in place. Place the cover on the cooker body. Put one hand on the top center of the cover and push down firmly. Open and close the cover several times. Fits Presto Pressure Cooker models:4 Quart Models: 01/PS4, 0131001-0131004, 0134001, 0134103, 0134104, 0134105, 0134106, 01341086 Quart Models: 01/PS6, 0126002, 0126407, 0126408, 0126410, 0135001-0135004, 0136001, 0136102, 0136203, 0136206, 0136208, 0136210, 0136304, 0136403, 0216001 Features The product is pressure cooker sealing ring with automatic air-vent Easy and simple use kit The product is manufactured in china Includes overpressure plug Replaces Presto parts 09904 and 50295 Forms a pressure-tight seal between the cover and the body of the Presto pressure cooker See a full list of Presto pressure cooker models this replacement part fits below USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.