Presto Pressure Regulators(Jigglers / Rockers) and vent pipes What if I DON'T KNOW WHICH ONE !!! 9978 Pressure Cooker,Pressure Regulator (Jiggler) $8.89 Presto 50332 Pressure Canner Pressure Regulator Regular price: $18.99 Sale price: $16.99 Presto 9979 Pressure Cooker Pressure Regulator/Steam Reg. $12.49 1058 Vent Pipe $8.49 Presto 85485 Pressure Canner Regulator Kit $16.99 85608 Vent Pipe $9.49 85651 Vent Pipe $10.49 Don't know which one? First, Find your model number on your cooker or canner. Then click here