Presto 50332 Pressure Canner Regulator, Stainless Steel, For: 01/C13, 01/C17, 01/C22, 0171001 Pressure Canner

The pressure regulator controls the amount of pressure that can be built up in the canner. It consists of the pressure regulator body and two 5 lb weight rings. Completely assembled, it will maintain 15 lb of pressure.