Features: Quick intake adapter is an inflatable block off bladder with a pressurized vapor pass-through that allows technicians to test an entire intake or exhaust systems quickly and easily High-Quality: Made of High quality silica gel, Quick intake adapter is an inflatable block off bladder with a pressurized vapor pass-through that allows technicians to test an entire intake or exhaust systems quickly and easily. Benefits: Works on a 100 percent of all smoke machines, to quickly leak test the integrity of the entire induction system with one simple procedure. How To Work: Clean the inner wall of the intake opening while the Air Filter, and the Throttle connections are removed, so as not to scratch the adapter, please make sure the diameter of intake adapter is bigger than 2 and less than5.5. Wide UseEasy Intake AdapterBlock off bladder conforms to anyshape of intake / exhaust: Round, oval, square, rectangular and even severely angled and hard to reach intake / exhaust systems, while allowing vapor to pass through for fast diagnostics.