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HVL Series Engineering/Performance Data
Countersunk mounting holes for flush appearance with stainless sheet metal screws
Hand operated level for easy filter access and cleaning
Standard Features * 2561 - Square or rectangular fire door for vertical mount only
Blade lock to secure blades once the product is activated
Parallel Volume Damper Low Leak 3000PLL-68X16 Residential Registers & Grilles HVL Series Engineering/Performance Datah3. 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
