EXT External Mount Duct Fans better AIRFLOW by DESIGNTM
EXT External Mount Duct Fans Continental Fan’s EXT External Mount Duct Fans are the perfect solution when space restrictions prevent the use of in-line duct fans. EXT fans provide a simple through-the-wall solution, and can be sidewall mounted on the exterior of a building to allow for easy access to the fan. EXT fans utilize quiet and energy efficient external rotor motors.