Return Air Grille 1075-10X18 Commercial Square to round transition collar

Square to round transition collar

425 Series Engineering/Performance Data

RD Series Engineering/Performance Data

Building materials rated 3 hours or less

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"

Return Air Grille 1075-10X18 Commercial Square to round transition collarStandard Features * 1 2" spacing dual angular louvers * 22 & 20 gauge cold roll steel * Mullions are reinforced with stiffeners for greater strength * For applications where greater air volume is required * Install with louvers in up or down position for best duct concealment * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * Tamper proof screws * Standard Color, Designer Color or