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'X' suffix models also have powered electric anti-backdraught shutters 258512
mould & plant spores
used to catch small and often invisible particles such as pollen spore bacterium and dust are also available - see model reference 90000323
Lo Carbon Quadra HTP (Humidistat/Timer/Pullcord) One Fan fits all Centifugal Fan
giving 75% more flow from an only slightly increased fan footprint
Greenwood Acoustic MA3051 airflow-filters-cat-10 'X' suffix models also haveGreenwood Acoustic MA3051 wall ventilator in white providing acoustic attenuation to Dn,e,w 55dB(A), suitable for external wall thicknesses of 140mm and above and can be installed in internal wall constructions of between 100 150mm. Equivalent performance 2500mm2. Supplied with internal controllable vent and white sand external grilles. Conforms to acoustic requirements of Noise Insulation Regulations (NIR) 1975, one of only a small number of products
US$ 66.85
US$ 179.00
US$ 149.50
US$ 200.00
