Designed as a commercial-grade vacuum packaging system, but usable for a wide variety of applications. The true chamber vacuum system has many advantages over nonchamber sealers. Its higher level of vacuuming extends the shelf life of food even more than nonchamber sealers. It also effectively vacuum seals liquids. The Dry Rocker Piston Pump automates the process for hands-free operation. Simply turn on the power, place a bag in the chamber, close the lid, and the bag is vacuumed sealed for you. The seal-bar timer is adjustable for a variety of bag sizes and thicknesses, accommodating bags up to 10" x 15". Cycle time adjusts from 0 to 60 seconds for various item sizes and liquid consistencies. USDA-approved stainless steel chamber. Chamber size: 15.5"L x 11"W x 5"H. Overall size: 20.5"L x 14.5"W x 11"H. Weight: 72 lbs.