Suncourt TW208P ThruWall Hard Wired Variable Speed Room to Room Air Transfer Fan

Used in conjunction with PTAC units, mini-splits, fireplaces, wood stoves, window air conditioning units, and other HVAC systems Sound levels are 55 dBA on high speed and 49 dBA at low speed, comparable to the sound of a desktop computer fan Variable speed dial that lets you control how powerful the airflow is into the room this unit is installed Balance temperature between rooms, with the rotatable grille you can direct airflow to your preference Electrician or electrical knowledge is needed as this unit is required as direct installation into your home's electricity is needed in order to operate The telescoping housing allows wall widths from 4 to 6.5 inches thick Color: White Dimensions (L x W x H): 15 x 15 x 6 inches Weight: 5 pounds