Package Includes: 2 PCS 09985 Pressure Canner Sealings Ring and Overpressure Plugs Compatibility: Our 09985 pressure canner sealing ring fits presto pressure cooker models 0174510(16 qt), 0175107(18 qt), 0175510(16 t), 0178107( 23 qt), 0178209( 23 qt ), 0178410( 23 qt ). It is the perfect presto 16 qt pressure canner parts, presto 23 qt pressure canner parts, and presto 18 qt pressure canner parts Function: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 Durable and high temperature resistance:Our 09985 sealing ring is made of food-grade silicone material, long lasting. An affordable way to repair your pressure cooker CONVENIENT INSTALLATION: This product is precision-engineered for easy installation and simple, convenient operation Package Includes: 2 PCS 09985 Pressure Canner Sealings Ring and Overpressure Plugs Compatibility: Our 09985 pressure canner sealing ring fits presto pressure cooker models 0174510(16 qt), 0175107(18 qt), 0175510(16 t), 0178107( 23 qt), 0178209( 23 qt ), 0178410( 23 qt ). It is the perfect presto 16 qt pressure canner parts, presto 23 qt pressure canner parts, and presto 18 qt pressure canner parts Function: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 Durable and high temperature resistance:Our 09985 sealing ring is made of food-grade silicone material, long lasting. An affordable way to repair your pressure cooker CONVENIENT INSTALLATION: This product is precision-engineered for easy installation and simple, convenient operation