Vacuum Testing Equipment & Accessories
The bladder style units are made of lightweight aluminum. Our Wide Bladder™ technology gives these units the largest usage range available in the industry and allows for field replacement. The Super Wingnut™ makes adjusting the height of the unit quick and easy. All of our Bladder Style Test Heads are supplied with a vacuum port, shut off valve, 30" of Mercury vacuum test gauge, vacuum relief valve, and durable support bar. The unit seals on the inside diameter of the manhole.