Circular Ceiling Ventilation Metal Air Valves - Supply and Extract Material: Epoxy coated Steel RAL9010 finish with mounting ring. - Please note, these are not brilliant white. Regulation of the air flow occurs when rotating the inner cone to the correct position and fixing in place with a nut. Easily removed and replaced for cleaning purposes. Diameter range: 100 to 200mm If you have any questions regarding this product or any others, please feel free to call us on 03456 800 696.
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