Zehnder Filter set Coarse 60% (G4) + ePM1 60% (F7) for ComfoAir 70 52291575 It has 19 pockets (including

It has 19 pockets (including 2 long shank side tool pockets) interior and exterior pockets

mm x 60 mm duct to fitting connector (GD817SSCI)

Manual boost inhibit

and a spacious interior

The adjustable overrun timer operates automatically when installed

Zehnder Filter set Coarse 60% (G4) + ePM1 60% (F7) for ComfoAir 70 52291575 It has 19 pockets (includingThis 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.