Zehnder Filter set 2x Coarse 60% (G4) for ComfoAir 90/91 990 320 781 8mm) lengths

8mm) lengths

Integral background shutter

ensuring years of worry free operation

Ubbink Air Excellent AE48C Semi-Rigid Duct Anti-Microbial & Anti-Static 75/63mm Outside/Inside Diameter 50m

Suits MVHR Units

Zehnder Filter set 2x Coarse 60% (G4) for ComfoAir 90/91 990 320 781 8mm) lengthsThis set consists of 2x filters Coarse 60% (G4) for Comfair 90 91 unit 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.