Rytons A1® FlowRyt® Air Brick Extender Two-piece ventilator for sub-floor air bricks obstructed by patios, paving or raised ground levels. Raises the air intake by up to 3 brick courses. Supplied with colour-matched screws and fixing washers. FlowRyt® cover: 217mm W × 225mm H × 20mm D plus 20mm fixing flange. Rear extender: 215mm W × 85mm H × 18mm D. Colours: RAL8004 (Copper brown), RAL1001 (Beige), RAL9016 (Traffic white) matt finish achieving Class A2-s1, d0. Other RAL colours available on request. 8,000mm² free area per unit. Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Protected by unregistered design rights. Patent Approved. Product Code: A1FRABE. Download Drawing.
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