ProVac vacuum chamber 5 gallon size The ABSOLUTE BEST Vacuum chamber you can buy DONT settle for cheap overseas imitations Comes with LIFETIME warranty on Lid seal and Chamber This combo will deliver the deepest vacuum available and maintain that high vacuum for over 24 hours The seal is built right into the lid and is 100% Polyurethane, no flimsy silicone rubber bands here DO IT RIGHT get the kit the PRO's use