The Colt Vacuum Pump System is an industrial grade pump system built with hardwearing construction. It features a high pressure metal vacuum pump with E-Z Grip padded handles. It is also equipped with a professional vacuum pressure gauge and a universal quick disconnect valve. This pump features a flared and slightly tapered cylinder for improved fit and suction. The durable cylinder measures 9.5in x 2.25in id, and is transparent, so you can view your achievement. This pump system features a flared and slightly tapered cylinder and a hygienically superior tapered silicone sleeve for a secure vacuum seal. For unbelievable results, try the Colt Vacuum Pump System.