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 pack contain both a sealing ring and overpressure plug. It is recommended that both items be replaced at the same time. Compatible Products 01/PS4 - 4-Quart Pressure Cooker 01/PS6 - 6-Quart Stainless Steel Pressure Cooker 0126002 - 6-Quart Pressure Cooker 0126407 - 6-Quart Aluminum Pressure Cooker 0126408 - 6-Quart Aluminum Pressure Cooker 0126410 - 6-Quart Aluminum Pressure Cooker 0131001 - 4-Quart Stainless Steel Pressure Cooker 0131004 - 4-Quart Stainless Steel Pressure Cooker 0134001 - 4-Quart Stainless Steel Pressure Cooker 0134002 - 4-Quart Stainless Steel Pressure Cooker 0134103 - 4-Quart Stainless Steel Pressure Cooker 0134104 - 4-Quart Stainless Steel Pressure Cooker 0134105 - 4-Quart Stainless Steel Pressure Cooker 0134106 - 4-Quart Stainless Steel Pressure Cooker 0134108 - 4-Quart Stainless Steel Pressure Cooker 0135001 - 6-Quart Stainless Steel Pressure Cooker 0135004 - 6-Quart Stainless Steel Pressure Cooker 0136001 - 6-Quart Stainless Steel Pressure Cooker 0136102 - 6-Quart Stainless Steel Pressure Cooker 0136203 - 6-Quart Stainless Steel Pressure Cooker 0136206 - 6-Quart Stainless Steel Pressure Cooker 0136208 - 6-Quart Stainless Steel Pressure Cooker 0136210 - 6-Quart Stainless Steel Pressure Cooker 0136304 - 6-Quart Stainless Steel Pressure Cooker 0136403 - 6-Quart Stainless Steel Pressure Cooker 0216001 - 6-Quart Stainless Steel Electric Pressure Cooker