Sigrist Design supplies a wide range of filters for HVAC, industrial, commercial and construction applications.

There are numerous custom designs and dimensions manufactured for each specific application.  Applications include dust collection and fresh air supply unit (FASU) filtration.

Fresh Air Supply Unit (FASU) replacement filter as fitted to Goverment Schools Model FASU-FT-146 – Reorder code FILT-V-F5-412-412-90

Fresh Air Supply Unit (FASU) replacement filter as fitted elsewhere Model FASU-FT-146-HERITAGE – Reorder code FILT-V-F5-412-272-80

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