Filter for Zehnder MVHR 90 / ComfoAir G90-300/G91-350, ISO Coarse >60% (G4), 2 Pieces 400 502 004 The 90 degree rigid connector

The 90 degree rigid connector can be used to covert ComfoTube Flat 51 to ComfoTube 90mm

Low unit noise

side entry MVHR unit that can recover up to 93% of

No sealant or tape required

Filter for Zehnder MVHR 90 / ComfoAir G90-300/G91-350, ISO Coarse >60% (G4), 2 Pieces 400 502 004 The 90 degree rigid connectorThis set consists of 2x filters Coarse 60% (G4). Coarse 60% is the name according to the new filter standard ISO 16890. Course refers to particles 10 micron. Coarse 60% means that at least 60% of particles in the size interval 10 micron are removed. G4 is the classification earlier used. Both filters can be used for supply and extraction air.