• Tight-closing shut-off damper
• Available in either ductwork leakage classe 0 or 4
• Rubber seal on the damper blade
• Supplied in the following configurations:
  - With provision for motorised control
  - Motorised control
• Quick connection enables simple access for cleaning (accessory)

The CRT is a circular shut-off damper that conforms to ductwork leakage class 4, according to the swedish VVS AMA 98 Standard. The damper is used in ducts where minimal leakage, 1 kPa max. differential pressure (pressure class A) is required while the damper blade is closed.