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.