er product cost. Evaporative air cooler plastic air duct has been mass-produced to reduce product costs. Interfaces such as elbows and reducers of galvanized ducts still need to be customized according to the construction site.
2. Complete product size. The air volume of the evaporative air cooler is divided into 18000cmh\25000cmh\30000cmh. The plastic air duct has a complete range of sizes to match the air volume of the air cooler.
3. Lower shipping costs. Evaporative air cooler plastic air duc