I bought a RooR from a friend of a friend a few months back. Recently I decided to upgrade to a diffusor and get a new bowl from everyonedoesit. I ordered these parts in size 18.8, which turned out to be too small. So, I returned the items and exchanged them for 29,2. I just received the size 29.2 parts and again, they don't fit, too big this time.
Long story short: 18.8 sizing is too small, 29.2 is too big.
Do they make any sizes between 18.8 and 29.2? I appreciate any info you guys have to offer. Thanks!