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Countersunk mounting holes for flush appearance with color matching screws
Standard Features * Use in applications for installing round without damper * Steel galvaneal construction
904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 4" Duct Opening (front blades parallel to shortest dimension)
115T Series Engineering/Performance Data
Standard Features * Individually adjustable curved blade T-Bar lay in diffuser with concealed hinges * Hinged perforated face * Spring push release for easy access to adjust curved blades * 2x2 galvaneal steel panel with seismic support hangers * Round No Labor Collar sizes: 6-10"
Lattice Return Air Grille 600-34X34 Step Down Ceiling Diffuser Countersunk mounting holes for flushStandard 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
