TerraBloom Fan Speed Controller For Booster Inline Exhaust and Duct Fans. Blower Airflow and Motor Speed Adjuster. Rated For Up To 350W. Continuous Dial Rheostat Control: Amazon.com: Tools & Home Improvement
iLIVING Thermospeed Controller For Variable Speed Exhaust Fan, Black ILG8SFST - The Home Depot
Shutter Mounted Wall Exhaust Fan 10 Inch w/ 9' Cord & Plug 650 CFM Var– Industrial Fans Direct
SC100W | Broan-NuTone® Exhaust Vent Fan Adjustable Speed Control Dial, White
Tidoin 12 in. Silver 940 CFM 1620 RPM High Speed Electric Power Gable Mount Shutter Exhaust Fan with Controller DHS-YDW1-2855 - The Home Depot
900-1500 CFM Standard Direct Drive Upblast Exhaust Fan with Speed Controller (.5 HP / 115 V / Single Phase)
SC100W | Broan-NuTone® Exhaust Vent Fan Adjustable Speed Control Dial, White