I have a FoodSaver that I purchased from a vendor at the county fair. One of the things I like is it came with jar vacuum caps so you can vacuum pack food in mason jars using the jar cap and rings.
You put the jar cap/lid on the jar and then fit the vacuum cap over that. Once the air is vacuumed out, you pull the vacuum cap off the jar. The jar cap or lid maintains the vacuum in the jar and all you have left to do is put the ring on to secure the lid. I use those mason jars to store/repackage freeze dried foods purchase in large cans. After I pull out what I need from the jar I can easily vacuum pack it again.
Check and see if vacuum sealers you are look at have the caps