Presto Pressure Cooker Repair - How to Replace the Sealing Ring - YouTube
Presto B 401 A 4 Quart Pressure Cooker Stainless Steel - Etsy
Amazon.com: 09985 Pressure Canner Sealing Ring/Overpressure Plug Pack for Presto Part - Fits Presto Pressure Canner models: 0174510, 0175107, 0175510, 0178107 (1Pack) : Home & Kitchen
Amazon.com: 2-Pack of Presto Pressure Cooker Sealing Ring/Gasket & Overpressure Plug (2 Sets per Pack) - Part 09936, 09904 and 50295 - Fits Various 6-Quart Presto Models - By IMPRESA : Home & Kitchen
Presto 12-22 Qt. Pressure Cooker or Canner Gasket - Parker's Building Supply