Parallel Blade Volume Damper 3000P-60X56 Residential Registers & Grilles SD34 - Transition Box Spiral

SD34 - Transition Box Spiral Pipe Grille (DOUBle Deflection)

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice face *

Standard Features * Heavy duty 16 gauge steel construction * Blades run parallel to longest dimension given * Gym Grade - includes welded core and extra supports for heavy duty application * Mounting holes for sidewall and ceiling application * Soft White Options * No mounting holes * For opposed blade damper

601TFG Series Engineering/Performance Data

Parallel Blade Volume Damper 3000P-60X56 Residential Registers & Grilles SD34 - Transition Box Spiralh3. 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