Parallel Volume Damper Low Leak 3000PLL-64X28 Residential Registers & Grilles 904 - Double Deflection Adjustable

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 24" Duct Opening (front blades parallel to shortest dimension)

Standard Features * 4000 - door core grille with single frame * 4100 - door core grille with additional loose frame *

2" ADC compliant round collar with a bead for ease of installation

Adjustable baffle controllers to direct airflow horizontally or vertically

18" or 24" lengths * Soft White Options * Standard Color or Designer Color Finish available on this product

Parallel Volume Damper Low Leak 3000PLL-64X28 Residential Registers & Grilles 904 - Double Deflection Adjustableh3. 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