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Ø 100mm / 4'' Air Valve Made of Powder-coated Steel Designed for Air Extraction The Air FlowIs Adjusted by Rotating The Control Disc Supplied with Mounting Ring to Facilitate Simple Connection to Rigid and Flexible Ducts Fast and Simple Installation on Wall or Ceiling
Ø 100mm / 4'' Air Valve Made of Powder-coated Steel Designed for Air Extraction The Air FlowIs Adjusted by Rotating The Control Disc Supplied with Mounting Ring to Facilitate Simple Connection to Rigid and Flexible Ducts Fast and Simple Installation on Wall or Ceiling