Architectural Lattice Grilles 1307-14x28 Finish:DarkBronze Ceiling opening must be 4”

Ceiling opening must be 4” larger in length and width than the nominal duct size

Designed to handle high volumes of air with horizontal flow

1550 Series Engineering/Performance Data

Round ceiling radiation butterfly damper

3/16" cross bars

Architectural Lattice Grilles 1307-14x28 Finish:DarkBronze Ceiling opening must be 4”Standard 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 *