Which media blaster?

Which media blaster?

http://sfbay.craigslist.org/nby/tls/3735099207.html
Harbor Freight, Red, 40lbs nominal, better water trap, fittings

http://sfbay.craigslist.org/pen/tls/3732127272.html
Soda blaster 15lb capacity, comes with 1/2 bag of medium soda material

http://sfbay.craigslist.org/sby/tls/3731330338.html
whatever commerical grade automotive sand blaster means, also has a air drier & ceramic tip


All are cheap