Inquiry (采购产品): attic exhaust fan about 30 years ago we purchased an attic fan, a 48" fan attatched to a motor...a louver in the ceiling, 40"X31" that opened when the fan was turned on...a window or door had to be opened to let the outside air in to be blown out thru the attic.....do you sell this system?....thanks...dg **** Hidden Message ***** dg g 07446 Company: none E-mail: skow11@optonline.net **** Hidden Message ***** skow11@optonline.net
