CO2 fire extinguisher.

OK, for the cheap bastard who wants an air bottle.......Major HVAC companies
use Freon in large tanks, about the size of a 20 lb. propane cylinder. They
are not intended to be refilled or recycled so they are normally thrown away
when empty.

Places like JC Whitney have valve kits for ~$15 that convert them for
"normal" air use. I have had one for about 15 years and it works
fine.............but I still go to my twin cylinder compressor to seat
tires.

 

I forgot to say, you need tyre soap and lots of it for this to work with a
tiny compressor
Note: not washing up liquid, spit, lard, s*it, or anything else to hand,
but proper Tyre soap.

-

 

Thanks - I'll look into that, I normally use tyre chalk.