This bench top sized vacuum system is designed to be a rugged production or testing unit. Some of our customers find this to be a practical size (10 inch dia by 10 inch deep)for use in vacuum degassing batches of silicone, epoxies,other liquids, or filling molds and other containers under vacuum.With the shut off valve turned and the vacuum pump off the chamber will still hold a high vacuumfor several hours. Also the air release valve will make "burping" the chamber and decompressiona snap. It truly has everything for your vacuuming needs, and at this price a true bargin as well.For true quality compare what we offer.We design rugged equipment with the best materials and true custom super strong O-ring seals for continuous use, with safety and a long life.It is constructed of heavy aluminum alloy with thick clear top. A Custom O-ring sealed lid is employed to withstand repeated closings with absolutely no wear on seals. All chambers are capable down to 29 inches(Hg)of vacuum or better.Interior Dimensions: • Standard - 10 inch Inside Diameter X 10 inch Deep• Vacuum down to 29 inch(Hg) under vacuum or better• Vacuum Gauge with a dial registering 0 to 30" of Hg and 0 to -100 kPa• A full diameter clear window for viewing• Vacuum connection, 1/4 nptf x 1/4 inch air hose barb provides quick connection to vacuum pump• Vacuum ball valve for quick pump downs and shut offs• A air release dump valve for "burping" the pot with no air contamination• High quality 12ft Self coiling polyurethane air hose with compressed brass fittings