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2500/2600 Installation Instructions
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 4" Duct Opening (front blades parallel to shortest dimension)
52h * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3
Standard Features * Stamped 22 gauge steel curved blade T-Bar lay-in supply diffuser * Field adjustable * Five air patterns: 101 - one way
Countersunk mounting holes for a flush appearance
Parallel Volume Damper Low Leak 3000PLL-68X12 past 12 months 2500/2600 Installation Instructionsh3. 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
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