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Eighteen air patterns
700MA Series Engineering/Performance Data
Square collar designed for 22" x 22" duct
Standard Features * 4000 - door core grille with single frame * 4100 - door core grille with additional loose frame *
Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser
Parallel Volume Damper Low Leak 3000PLL-70X26 T-Bar Eighteen air patternsh3. 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
