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Spiral Diffuser Radius Flush Mount Diffuser Single Deflection with Damper
Standard 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
see 1560 Series * Tamper proof screws * Standard Color
PERFORMANCE DATA 915 Series Engineering/Performance Data
Square to round 2" collar with roll formed retention bead
Parallel Volume Damper Low Leak 3000PLL-50X20 Residential Registers & Grilles Spiral Diffuser Radius Flush Mounth3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3. Options * 3000 PLL Low Leak Air Control
