Keep your pressure canner working efficiently with this essential sealing rings designed specifically for Presto pressure canners. These replacement rings are precisely engineered to fit Presto models CA16, CA16H, and 21-quart pressure canners, ensuring a proper seal during the canning process. Each ring comes with an automatic air vent (9911), a crucial component for safe pressure canning. The sealing ring maintains the necessary pressure levels for effective food preservation, while the air vent helps regulate pressure release. Regular replacement of these parts helps maintain your canner's optimal performance and safety. These genuine replacement parts are designed to match the exact specifications of your Presto canner, providing a reliable seal for all your home canning projects. Keep your pressure canner in top condition with these essential maintenance components. Denkuhin 09907 1075 Pressure Sealing Ring Compatible with Presto Pressure Cooker CA16, CA16H and 21 Qt, Canner with Automatic Air Vent 9911, Replaces Parts 82060, 393 & 82058