Model DFDR-510 is a round fire damper for use in walls, floors, and partitions with fire-resistance ratings less than three hours. Dynamic-rated-fire dampers are in HVAC systems that remain operational in the event of a fire.

Model DFDR-510 is a round fire damper for use in walls, floors, and partitions with fire-resistance ratings less than three hours. Dynamic-rated-fire dampers are in HVAC systems that remain operational in the event of a fire.

Model CSP inline fans are high performance fans designed for exhaust, supply or return air applications where low sound level are required. Units feature an insulated, galvanized steel housing with a forward-curved wheel.

• 22.625 x 13.25 inch inlet width x height
• 17.4375 x 8 inch outlet width x height
• Speed controllable, with up to 30% turndown