Wevac Vacuum Sealer Bags for the Foodsaver Vac 1075

A neighbor gave me his Foodsaver Vac 1075. It didn't come with bags, so I ordered the Wevac bags on Amazon. Not a sponsor.
The bags seem to work fine but the sealer vac is not providing a good enough vacuum.
I suspect the gaskets are bad but I cannot find replacement gaskets.