Those items can usually be found at the "Help" section of the parts store. Then NAPA has a rack with this kind of stuff. I would take some measurements on the ports to be sure of the ID.
I just realized you are in Sweden... buzzkill...
So get your measurements and go from there. If the check valve is still blocking in one direction, you can reuse it. It should hold vacuum in the line side of the circuit.
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