Lattice Return Air Grille 600-12X34 Damper:Opposed Damper w/ Screwdriver Operated Opposed Blade

w/ Screwdriver Operated Opposed Blade Damper

Louvers designed with rolled rib for maximum strength and rigidity

Heavy Duty ConstructionMRI CompatibleInsect Screen

Standard Features * Return air T-Bar lay-in filter grille * Removable louvered 20 gauge steel face * 20" x 20"x 1" filter (not included) * 7/8" fiberglass back plenum cut holes 6"-16" (collar by others) * Seismic support holes * Soft White

Adjustable steel curved blades

Lattice Return Air Grille 600-12X34 Damper:Opposed Damper w/ Screwdriver Operated Opposed BladeStandard 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