True enough; however, (1) it could be retro-fitted with a clip-on fitting, as I did with my tire deflator, and (2) the clip-on I retro-fitted onto my deflator has clearance issues with the stock rim design & has to be positioned-just so to stay clipped on (good thing I'm airing down anyways cause I lose lots of PSI just fumbling trying to get the clip-on fitting to stay clipped on!!!); however likely my clip-on fitting is simply a cheap POS & there are better ones out there...which could be fitted to inflator.

Hmmm...with Powertank it shouldn't be much of an issue (clip-on vs. no) as the tires are inflated PDQ, no???