Presto Pressure Cooker Sealing Automatic Review

Presto Pressure Cooker O-Ring #09909 and Auto Vent included O-ring but no vent. I need both items. I don't know if I will return it to Revain and order another, it will have both parts. If a human was involved, someone could easily make sure both items are in the box before sending them back since there is no glue or tape on the box's flaps to seal them. I don't think human involvement in Revane is possible, but I will get it back.

O-ring fits my Presto 4-412 "no spare parts" Super. The vent is free but under pressure. Raised the temperature to a hiss, scary and ready to go. Part 09909 What I measured. Ring outer diameter 9 inches, width 3/8 inches, thickness 7/64 inches. I have to say that it fits perfectly because it is snug. groove and 1/2-3/4 the length to hold it in the groove. You want it to be like this. If you work dry and overheat things, they will shrink in length. Squeeze them as you insert them into the groove

I recently bought a very used 4 Quarter cast aluminum Presto pressure cooker (#40) at a flea market. Surprisingly, even though the O-ring was very old, brittle and cracked, it was still building pressure. There was also an old style push cork in the lid. I decided to replace the o-ring, which included a new type of auto-bleed with a small metal pin in the center that pops out when the pressure is increased. I ordered part number 09909 although I wasn't 100% sure it was the right one. It took me