Opposed Blade Damper standard on 4" widths
3 or 4 way air patterns from face * One size fits 6" thru 16" (collar by others) * Soft White
screw holes and color matching panhead screws * Standard Color
Standard Features * Heavy duty 16 gauge steel construction * Blades run parallel to longest dimension given * Gym Grade - includes welded core and extra supports for heavy duty application * Mounting holes for sidewall and ceiling application * Soft White Options * No mounting holes * For opposed blade damper
Mounting holes with color matching 2" baseboard Phillips screws
Architectural Lattice Grilles 1307-8x20 Finish:Tan Opposed Blade Damper standard onStandard Features * 1" rim size (2" larger than nominal duct size) * 14 gauge steel * 1305: 1 2" lattice opening, 3 16" cross bars, 53% free area * 1306: 3 4" lattice opening, 1 4" cross bars, 57% free area * 1307: 13 16" lattice opening, 3 16? cross bars, 69% free area * 1308: 7 8" lattice opening, 1 4" cross bars, 60% free area * Soft White Options * Countersunk screwholes with matching Phillips #8 x 1 1 2" oval Screws * 10 or 12 gauge steel *