Opposed Blade Volume Damper 3000-0BD-56X48 Residential Registers & Grilles Square collar designed for a

Square collar designed for a 20” × 20”

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

22 gauge butterfly style galvanized steel blades

Standard Features * 45-degree fixed blades parallel to the longest dimension * Hand operated lever for easy filter access * Holds up to 2" thick standard filter (not included) * Removable face for easy cleaning and maintenance * Filter door hinges parallel to longest side * 4-way reversible door on square sizes * 2-way reversible door on rectangular sizes * Filter retention tabs * Concealed mounting holes * Soft White Options * SP920FG-4 - holds 4" deep air filter * 920 TFG - T-Bar mount * Standard Color or Designer Color Finish available on this product

REVIT FILES T-Bar Modular Core Diffuser with Round Collar 16

Opposed Blade Volume Damper 3000-0BD-56X48 Residential Registers & Grilles Square collar designed for ah3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee 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.