Architectural Lattice Grilles 1307-34x26 Step Down Ceiling Diffuser One-piece removable slide damper for

One-piece removable slide damper for off-season closure

" Spiral pipe diameter must be 4” larger than width of grille

Non-standard size collar (available in 6" through 20")

parallel to longest dimension

Architectural Lattice Grilles 1307-34x26 Step Down Ceiling Diffuser One-piece removable slide damper forStandard 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 *