The Tjernlund Duct Booster Register Fan Model RB10W is a white 10" x 4" fan designed for use with Tjernlund products. It features a 75 CFM air flow volume and operates on 115V corded power. Made of aluminum, galvanized steel, and steel, this booster fan is paintable and designed for wall mounting. It measures 13.2" in length, 10.2" in width, and weighs 5 lbs, making it suitable for various HVAC and refrigeration applications. No refunds no returns please ask questions