Successors are Siemens and Bosch VZ41AFG BBZ41FG which then are sometimes cheaper.
I can quote specifically from the packaging of BBZ41FG:
MegaFilt SuperTEX Type: G
4 piece +1 microfilter
Hygiene closure - no dust contact with filter bag disposal; Synthetic non-woven material for high fine dust absorption
Siemens VSZ4 ... VSZ3 ... VS06G ... VS07G ... VS04G ... VS5.A. VS5.B. VS5.C. VS5.D. VS5.E. VS.KA. VS63A1.-VS63A9. VS63A00 VS63A07 VS7.C ... / D ... VS32. / 33rd VS42. / 44th VS9.A ...
Bosch BSGL4 ... BSGL3 ... BSG6 ... BSG7 ... BSG4 ... BSA ... BSD ... BBS631.-BBS639 ... BSC ... BBS7 ... BBS8 ... BSF. ..
The Universal microfilter has markings that you have to fold at certain vacuum cleaner types.
The filter itself is in the picture or how the individual comes with the vacuum cleaner:
Plastic guide, foam sealing means at the hole of the filter bag. The plastic plate as hygienic seal is quite good: locked in the open position a little, does not slip by in the closed position and is accidentally Close to reopen.