Aluminum / Steel Spiral Duct Supply Grille - Model 4004P
The models 4004P(aluminum) and 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 4004P is all aluminum construction Model 4004SP is galvanized steel construction