Sales. Buy 4 filters in one package and save 20% compared to buying single pack.
4-pcs IVT/Bosch Filter till IVT 490 / 550 / 550 / 690, Autoterm 190F
The filter fits among others IVT 490 and the other IVT exhaust air heat pumps that has filters that matches the below measurements:
Length: 480 mm
Width: 165 mm
Thickness: 13 mm