Aluminum Spiral Duct Mounted Grille • Single or Double Deflection • Optional Damper/Extractor
- Spiral Grilles save contractor installation time and money by directly mounting to the duct.
- Available with single or double deflection, with adjustable louvers vertical or horizontal.
- Front louvers available in vertical or horizontal.
- All-aluminum construction with universal end caps to match duct diameters from 10” thru 36” in even increments.
- Foam gasketing standard for tight seal to duct.
- Optional ASD (Air Scoop Device) - operable with Phillips screwdriver for volume adjustment, accessible from grille face.