You can attach to a capped one on the vacuum tree (which is hollow and has a rubber gasket at base) and seal the broken hole.

The OREO is a check valve that only allows flow of gas from the white side to the black side. They rarely fail but I don’t think you can source them new anymore. You can use a generic one from a FLAPS...local auto parts store Last I looked they were ~$30/each. Crazy price for a darn check valve. No...

Generic one about $5 at FLAPS