Spanner for Mira Electric Shower Filter

thingiverse

I designed this adapter to fit my old Mira electric shower, specifically to remove the filter and check if it was blocked. I found that a 24mm spanner is the correct size for the job. Since the filter itself is made of plastic with an O-ring seal, not much force is required to remove or replace it, making this adapter work perfectly. The Fusion 360 file is included in case any modifications are needed.