- Made of galvanized steel. Prevents reverse air flow when fans are shut off. Saves CO2 and prevents odors from flowing backwards. Rubber gasket pre-installed on exterior for an air tight seal.
- Tech Specs
Brand DL Wholesale SKU 403004 Weight (lb.) 1 Lead Time Ships in 1-3 Days Length (in.) 4 Width (in.) 4 Height (in.) 5 Warranty Yes UPC 816731018227 Prop 65 No Flange Included No Duct Size 4" Diameter