Architectural Lattice Grilles 1307-44x36 Step Down Ceiling Diffuser Single deflection radius mount spiral

Single deflection radius mount spiral pipe grille with adjustable blades

904 - Double Deflection Adjustable Aluminum Blade Grille For a 48" x 30" Duct Opening (front blades parallel to shortest dimension)

1” rim size (2” larger than nominal duct size / order size)

Countersunk mounting holes for flush appearance

Architectural Lattice Grilles 1307-44x36 Step Down Ceiling Diffuser Single deflection radius mount spiralStandard 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 *