The models 4004SP (galvanized steel) offers superior performance in exposed duct applications offering a clean, low profile appearance.

• Front blades are vertical
• Units can be easily installed in round duct diameters 10" to 48"
• Integral gasket seals provide a tight fit to round duct
• Units includes built in extractor to allow accurate balancing and uniform air flow
• Model 4004SP is galvanized steel construction