Technical Specifications Manufacturer/Supplier: Flexible Ducting - see their website Type: Circular Louvre Internal Diameter: 198mm External Diameter of flange: 221mm Depth: 21mm Colour: Aluminium Natural Finish Application: For Air Supply & Exhaust in Ventilation Systems Material: Moulded Aluminium and Inox Mesh Mounting: To Be Fitted in Ducts or Round Openings in External Wall This item retails at >£20
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