Old stock 3 way Valve stem kits. One gasket was broken and thrown out and the other 5 are likely somewhat aged and weakened.

There's 3 kits included in the price and free shipping in Canada and to the United States. 

Listed as parts or not working where the gaskets are aged and one is missing. One bag is open, the other 2 are sealed. I'm not sure what brand they are or where they were manufactured, but I'm certain they're aftermarket.

Will ship assuming made in the United States.