Compatible wit:Replacement for Presto Parts 09985 Our 09985 presto sealing ring is made of food-grade silicone material, which is non-toxic, heat-resistant, tear-resistant and durable to use. 09985 Pressure Canner Sealing Ring Compatible with Presto pressure canner models 0174510 (16 qt), 0175107 (18 qt), 0175510 (16 qt), 0178107 (23 qt), 0178209 (23 qt), 0178410 (23 qt). 【Function】The sealing ring 09985 fits around the inside rim of the cover and forms a secure pressure-tight seal between the cover and the body of the pressure cooker during canning and cooking. Compatible with:Replacement for Presto Parts 09985 Our 09985 presto sealing ring is made of food-grade silicone material, which is non-toxic, heat-resistant, tear-resistant and durable to use. 【09985 Pressure Canner Sealing Ring】Compatible with Presto pressure canner models 0174510 (16 qt), 0175107 (18 qt), 0175510 (16 qt), 0178107 (23 qt), 0178209 (23 qt), 0178410 (23 qt). 【Function】The sealing ring 09985 fits around the inside rim of the cover and forms a secure pressure-tight seal between the cover and the body of the pressure cooker during canning and cooking.