In addition to forming a pressure-tight seal between the lid and the pressure cooker, this Sealing Ring, which fits around the underside of the lid, also acts as a backup safety system to ensure safe operation. It should be replaced every two years, or before, if it becomes hard, deformed, cracked, worn, pitted, or soft and sticky. This Sealing Ring fits the following pressure cookers:
TTU-I9530 Basic Essentials 5 quart Soft Anodized Pressure Cooker
TTU-I9554 Philippe Richard 6 quart Aluminum Pressure Cooker
TTU-I8403 Basic Essentials 5 quart Aluminum Pressure Cooker
TTU-I9557 Essential Home 5 quart Aluminum Pressure Cooker
TTU-18124 Philippe Richard 5quart Aluminum Pressure Cooker
*Price includes shipping.