Air ducts are used for air conditioning (HVAC System), ventilation and heating. Different types of air ducts are available in the market. Corrugated air ducts have been trending in the market for some time now due to their strength and versatile usage. Use of HVAC systems is prominent as corrugated air duct finds varied use in day-to-day life. Corrugated air ducts are available mainly in two types: sheet and flexible ducts. Flexible corrugated air ducts are essential for HVAC systems. Corrugated air ducts are available in various sizes and pressure ratings, pertaining to both residential and commercial needs.