Architectural Lattice Grilles 1302-12x38 Step Down Ceiling Diffuser Spiral pipe diameter must be

Spiral pipe diameter must be 4” larger than Height of the duct opening

For ceiling or sidewall applications

Low profile design for tight mechanical areas

904 Series Performance Data

Fits 1x1 ceiling grids (collar size 6"-10")

Architectural Lattice Grilles 1302-12x38 Step Down Ceiling Diffuser Spiral pipe diameter must beStandard Features 1 rim size (2 larger than nominal duct size order size) 14 gauge steel construction Countersunk mounting holes for a flush appearance 1 27 32 Wide x 11 32 High slots on staggered centers. 5 32 crossbars, with 75% free area Options 14 GA 304 SS Construction 12 GA (. 080") Aluminum Construction 1 8" GA (. 125") Aluminum Construction 12 GA Steel Construction