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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
For evaporative coolers or central blower systems
Spiral pipe diameter must be 4” larger than Height of the duct opening
Spiral Diffuser Radius Flush Mount Diffuser Single Deflection with Damper
1550 Series Engineering/Performance Data
Parallel Blade Volume Damper 3000P-24X6 Specialty Products For evaporative coolers or centralh3. 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
