Zehnder Acoustic Flexiduct, Aluminium, Dia 100mm 10m Length 471 502 023 UPG) which is designed to
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Description
Zehnder Acoustic Flexiduct, Aluminium, Dia 100mm 10m Length 471 502 023 UPG) which is designed to UPG) which is designed to filter the same particles but at a higher efficiency of > 60% The adjustable settings are: delayed timer on off