Architectural Lattice Grilles 1307-18x28 Finish:DarkBronze All component parts

All component parts

904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 8" Duct Opening  (front blades parallel to shortest dimension)

Holds up to a 1" filter (not included) with filter retention tabs (FG1)

Lever Operated Opposed Blade Damper

Minimum size 4"x4"

Architectural Lattice Grilles 1307-18x28 Finish:DarkBronze All component partsStandard 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 *