Original Vallox no 11 filter packet.
Fitting Vallox Ilmava 252D/252M machine
Filter packet including all filters to filter chancing service.
1pcs G4 filter, size: 290 x 550
1pcs G4 filter, size: 270 x 550
1pcs F5 filter, size: 200 x 550
1pcs F7 filter, size: 240 x 550