Lattice Return Air Grille 600-14X34 Commercial Flush core and frame provides

Flush core and frame provides smooth surface

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

Back blades are parallel to the longest dimension

listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar

Lattice Return Air Grille 600-14X34 Commercial Flush core and frame providesStandard Features * 1 2" x 1 2" x 1 2" aluminum lattice return air grille * Surface mount grille with . 055 T6 extruded aluminum frame * 90% free area * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * 600 O opposed blade damper * No Labor Collar Square to round (square sizes only) * 600 T T Bar mount * 1 2" x 1 2" x 1" Lattice or 1" x 1" x 1" Lattice * Fractional sizes, inner