Industrial Grade Bubble Air Controller is used in plastic packaging industries and reduces problems which usually arise due to air leakage and puncture in the film. The Air Controller is involved in observing film size continuously as well as turning it to preset size when the size get narrow, as a result, it helps to minimize size variation in the film. The Air Controller is installed near the size ring of the blown film extrusion plant for the easy operation. The Industrial Grade Bubble Air Controller is used in extrusion plant of HM, LD, LLDPE, and PVC.