Greenwood Extract valve, ⌀ 125mm, galvanised steel 100-150 used to catch small and

used to catch small and often invisible particles such as pollen spore bacterium and dust are also available - see model reference 90000323

Timers- these carry on running for an adjustable period - usually about twenty minutes after it has been switched off - but this can be set to anywhere between two and thirty minutes

it is activated by movement and it can also be connected to a switch for continuous operation

it can be connected to the same switch as the light circuit when a 2 pole switch is used

LH Discharge

Greenwood Extract valve, ⌀ 125mm, galvanised steel 100-150 used to catch small andGreenwood Extract valve, 125mm, galvanised steel