Honeywell SPRD10 Static Pressure Zone Damper

Single-blade, steel barometric damper used to bypass excess air when majority of zone dampers are closed.Features

• Counter-balanced weighted arm to control bypass air for zoned systems.
• Available in rectangular/square and round sizes.
• Air pressure in duct system increases as zone dampers close, pushing the SPRD open automatically. 
  
• Arm and weight both adjustable to control amount of air bypassed.
• Recommended for low pressure systems with less than 0.5 in. wc.
• For larger systems and tighter pressure control, use MARD damper and static pressure controller (SPC).
• Additional weights available
• Available in: Round sizes 7, 8, 9, 10, 12, 14 and 16 in. diameters. Rectangular sizes (width x height)12 x 8, 12 x 10, 12