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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
1/4" cross bars
*Note: Ceramic fiber blade insulation is not UL required on dampers with free areas less than 80 square inches
Blades are parallel to the shortest dimension
For ceiling or sidewall applications
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
Parallel Blade Volume Damper 3000P-28X20 Step Down Ceiling Diffuser 1/4" cross barsh3. 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
