I mostly use quart and pint.
Mostly for breaking down bulk meat purchases, deer meat and veggies from the garden.
There is an eBay seller. Forget the name. BagsUSA or VacUSA , something similar.
Made in USA bags and are reasonable priced when bought in quantity.
Just because they are sold in the US doesn't mean they are made here. I don't think any vacuum bags are made in the states.
