Manufacturer Name: Field Controls Product Number: SWG-4HDS OEM Part Number: SWG-4HDS Product Description: Stainless Steel Power Venter 170000 Btu - 1.10 Gph 46395401 Weight:19lbs/8618.25g The Field Controls SWG-4HDS is a high-performance venting system designed for commercial applications. It utilizes stainless steel construction for durability and corrosion resistance. https://www.partshnc.com/swg-4hds-field-controls-stainless-steel-power-venter-170000-btu-110-gph-46395401