Inquiry (采购产品): 4X4 Louver I am looking for a 4'X4' louver to supply out side air to our coumbustion chamber. It would be mounted to steel siding, and there should be an eight inch flange on the inside to go through the insulation. It can be manual or motorized, providing the motor is far enough from the side as we will be conecting to duct work. Thank you. **** Hidden Message ***** Rick Kofler 54311 Company: ENCAP LLC E-mail: rkofler@encap.net **** Hidden Message ***** rkofler@encap.net
