****NEW AND IMPROVED**** Vacuum Chamber is designed for de-airing (eliminating bubbles) in appropriate pot life resins and silicones. The chamber (along with the 1/2" Lexan plates) makes a safe and efficient unit. It comes with gauge, all fittings, rubber gaskets, and top & bottom Lexan plates. All that you need is your power source and a vacuum pump that will pull 29" of Hg. The chamber is 10" diameter x 12" tall.