Weston Pro 2300.
Order from Amazon.
Search it on the bottom. I know there are multiple threads on this topic.
I too have used the Pro-2300 for several years using about 20 bags a week.
The unit has worked flawlessly without any issue. It is also user serviceable for repairs if they are ever needed and parts are readily available. That was my main reason for buying it.
After blowing through 2 Foodsavers that are unserviceable, it was time to get a real Vac-Sealer and throw out the junk.
Weston also sell refurbished / open box models.. Click here
I bought my foodsaver at Costco. It has crapped out and they replaced it just by showing the receipt.