4 Inch Duct Fan - 280 CFM Bathroom Ventilation Fan, Inline Exhaust Fan for Kitchen, Grow Tent & Hydroponics | ABS Material | Quiet & Energy Efficient Air Circulation for Home & Commercial Use

This is my review of the LIUQIBAX 4 Inch Duct Fan - Bathroom Vent Fan, Inline Ventilation Exhaust Fan, 280 CFM Household Ventilation Fans for Duct Vent, Bathroom, Kitchen, Grow Tent, Hydroponics (ABS material)This fan has a uniquely designed case that can be used for both 6" and 4" ductwork or used on its own for an area fan. I ordered this fan to boost the furnace air going to the bathroom in my apartment. It is a long run, and my furnace has difficulty pushing sufficient air to the bathroom, two floors up and relatively far away. I also purchased a digitally adjustable thermostatic switch on Amazon.com. The UMLIFE XH-W3001 Mini Thermostat SwitchXH-W3001 Mini Thermostat Switch, to use with it so the fan only comes on when the furnace is on.Its ABS plastic case is surprisingly heavy-duty; it feels like it is built to last. The fan pushes a relatively large amount of air for its size, and the cord is also heavy gauge. I am happy with the quality of this product in all respects. However, as I did, you must obtain auxiliary controls to have it temperature-controlled or run at variable speeds.This product is reasonably priced, and I highly recommend it.