vhbw Filter Set Compatible with Paul Santos 370, 570 Ventilation Unit - Air Filter G4 / F7 (Pack of 2), 50 x 17 x 1 cm, White/Red/Black : Amazon.de: Home & Kitchen
KWL Air Filter for Zehnder ComfoAir Q 350/450/600 | 1 Filter Set | Filter Set G4 | 2 x Panel Filters Z/Line Box 160 x 500 x 23 mm G4 | 400502012 : Amazon.de: Home & Kitchen