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Square collar designed for 20” × 20” duct
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 16" duct Opening (front blades parallel to shortest dimension)
PERFORMANCE DATA CB-T Series Engineering/Performance Data
53% free area * 1306: 3/4" lattice opening
Front blades parallel to shortest dimension
Architectural Lattice Grilles 1304-4x18 Accessories Square collar designed for 20”Standard Features 1 rim size (2 larger than nominal duct size order size) 14 gauge steel construction Countersunk mounting holes for a flush appearance 1 4 Wide x 1 27 32 High slots. 5 32 crossbars, with 54% free area Options 14 GA 304 SS Construction Fractional Sizes Tamper proof Screws *Pricing is based on standard 14 GA steel construction. Please contact us for a quote on options. tony@registers direct. com
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