Greenwood Acoustic MA3051 airflow-filters-cat-10 41mm channel clips 1 1/4"

41mm channel clips 1 1/4" (32mm) B6850

Lo Carbon Quadra HTP (Humidistat/Timer/Pullcord) One Fan fits all Centifugal Fan

adjust the level of humidity that activates the fan and you can also turn off the humidity function

Greenwood Acoustic MA3051 wall ventilator in white providing acoustic attenuation to Dn

'X' suffix models also have powered electric anti-backdraught shutters 258512

Greenwood Acoustic MA3051 airflow-filters-cat-10 41mm channel clips 1 1/4"Greenwood 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