4 Inch Square Duct Ventilation Blower 110V Exhaust Extractor Fan Cabinet Air Fan
1 x 110V 4″ exhaust Fan. AUTOMATIC CHECK VALUE: Automatic valve, which can automatically open and close with the operation of the exhaust fan. Type: Exhaust Fan. OVERHEAT PROTECTION AND EASY INSTALLATION: Adopting an axial pipe fan that realizes optimal cooling and a sealed pure copper.