No longer need this size. Thank you.

Pretty sure it doesn't. I ordered it years ago for just that purpose and it didn't fit. The article now also says that it fits the models 'Check, Cubic, Double, Easy, Flash, Kyoto, Sahara, Stones, Sasso'. The thread diameter is approx. 14 mm, but for the PUR series it needs approx. 10 mm. I found matching replacement brushes from Spirella in the same look at Migros Do it.

My wand fits with the replacement brush

If we refer to the documentation provided by the supplier, this brush should indeed be suitable.

Suitable for the following series: Check, Cubic, Double, Easy, Flash, Kyoto, Sahara, Stones, Sasso.

The item is polished stainless steel. The diameter of the handle is 1.6 cm and the diameter of the brush is 73 mm.