Yes, as far as I know all pump consumables are developed and/or tweaked to be unique. Even where some (like Minimed Mios and Tandem Autosofts) look very similar, there are details like connections and the exact shape of caps / cannula linkages which are subtly different. I know this because Tandem has a manual insertion set that looks just like a (Medtronic) Silhouette, so I ordered a sample box, but the Sil inserter doesn‘t quite fit.