Product Introduction:09905 sealing gasket replaces Presto pressure canner sealing ring parts # 85141.Includes Automatic Air Vent & Overpressure Plug.Fits for Presto 12-22qt Pressure Cooker or Canner. High quality:Our pressure canner gaskets are made from high-quality, durable, food-grade silicone,designed to be durable and long-lasting. With its ability to withstand high heat, these rings ensure a secure seal during pressure canning . Compatible with Presto Pressure Canner models: Presto 01/CAA12H, 01CAA20H, 02/CAA12H, 02/CAA16H, 02/CAA20H, 01/C13, 01/C17, 01/C22, 01/CG22, 0171001, 0171002, 0171003, 0174001, 0175001, 0175002, 0175003, 0175004, 0177001, 0178001, 0178002, 0178003, 0178004, 0175005, 0178005, 0175006, 0178006, all models beginning with 01710, 01740, 01750, 01770, 01780. Easy to install:It is simple to install.Easy installation without any tools required Firstly, remove the old sealing ring and overpressure plug, clean the sealing ring groove and overpressure plug hole. Then install the cleaned sealing ring, ensuring that it is installed below the stopper and locking pin, at the inner edge of the sealing ring. Then install the overpressure plug, push the side of the plug (marked "TOP"), and enter the opening from the bottom of the cover. Finally, open and close the cover several times to ensure that the ring is fully seated. After-sale service:Rest assured to purchase. If you have any questions, please contact us. We will reply to you in a timely manner and help you solve the problem.