Opposed Blade Volume Damper 3000-0BD-68X36 Commercial Back blades are parallel to

Back blades are parallel to the longest dimension

Note: Sizes listed are the duct or opening size the grille will fit into

* 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount

Double deflection transition box mount spiral pipe grille

Blades run parallel to longest dimension

Opposed Blade Volume Damper 3000-0BD-68X36 Commercial Back blades are parallel toh3. 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.