The models 4004P(aluminum) and 4004SP (galvanized steel) offers superior performance in exposed duct applications offering a clean, low profile appearance.
Metalaire™ Spiral Duct Supply Grille, Double Deflection, 12 in Width, 4 in Height, Aluminum, Finish: Mill, 8 to 24 in Duct
Instruction/Installation Manual- 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 4004P is all aluminum construction