KAIR WHITE POWDER-COATED METAL ADJUSTABLE CEILING AIR EXTRACT VALVE High-quality white powder-coated metal adjustable ceiling air extract vent. The air flow is adjusted by rotating the control disc. Male spigot will fit inside Kair or other ducting 150mm Round Pipe or 152mm Flexible Hose. Discreet modern design which is suitable for flush fitting against ceilings and walls. Designed To Extract Air. If you are looking to supply air we recommend using the Kair supply valve. Aesthetically pleasing wipe-clean design. Suitable for internal use in compliance with Part F Building Regulations. If you are looking for a Fire Rated Extract Valve search for the Kair Fire Rated Extract Valve on Amazon. Mounting ring manufactured in 0.6mm thick galvanised steel with four 3mm fixing holes. The valve body is supplied with a cellular plastic gasket to form an air-tight seal. The air flow is adjusted by rotating the control disc and locking with a lock nut when set. Looking for another size or material? Kair extract and supply valves are available in 100mm, 125mm, 150mm, and 200mm sizes. Kair products are made in the UK and are compatible with the extensive range of fittings, outlets, and grilles in multiple sizes to offer your a complete solution for all of your ventilation needs. Please do not hesitate and as us any questions you may have.