Tjernlund EF-10 Fan Duct Booster

Tjernlund EF-10 Duct Booster Fan - 475 CFM The toughest built and best performing prop fan style Duct Boosters. Use to boost airflow into hard to cool or heat areas. Also used for ambient air supply and exhaust fans. All models have 24 gauge galvanized steel housings with ribbed duct stops, crimped leading ends and electrical junction boxes. EF-6 & 8 models have 3000 RPM C-frame motors and EF-10, 12 & 14 models have 1500 RPM shaded pole motors. Use model PS1503 Duct Airstat to automatically operate all other models. Use model SC-1 to speed control models EF-6, 8 & 10. Rated for 150°F max temp.