Bellright EXHAUST JACK Air JACK , X JACK Capacity: 4tons ,3tons and 2 tons Outdoor sport needed The EXHAUST JACK(X-Jack) is unique, practical and advanced in design. The EXHAUST jack has a triple layer top with a hard core insert for added protection and stability. The two way inflation system uses either the exhaust or a portable air compressor which provides added control in determining, rate ...