Opposed Blade Volume Damper 3000-0BD-68X30 Commercial Standard Features * 1/2" x

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice return air grille * Surface mount grille with

Galvanized Finish

91 Series Submittal

Filter retention tabs

Maximum dimension 60x60 single

Opposed Blade Volume Damper 3000-0BD-68X30 Commercial Standard Features * 1/2" xh3. 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.