Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: what size nozzles come with this unit & how many cfm required
Document: Most people probably don't sandblast much. You need to realize that small home compressors are not ideal. In order to do a fairly quick job, mostly non stop sandblasting, you probably need a 5.0 hp unit with at least 30 gallons.
You have to do your best to have dry air. I put a water separator on my 60 gallon Campbell Hausfeld compressor and an in line filter on the blasting gun. This compressor had no problem keeping up to the CFM required to run the sandblaster, but a lot of air meant moisture problems. It was humid out when I used it, so a little patience was required to clear the intake orifice from time to time.
This unit did a pretty clean job where I used it. It did still have some trouble siphoning, however, even after I shortened the hose. The largest drawback to this is how small the job needs to be for this to be used. If the object of blasting is very large at all, you'll be spending a lot of time with this. I ended up just paying sixty bucks and getting a larger blaster from Harbor Freight in the end.
Also like him I didn't check the before with the full length hose, but I was blasting on the ground right next to the bucket of sand and didn't need the long hose for siphoning anyway. I didn't have any problem with the threads scraping like he did, so maybe a bit better QC on this one. And yes like another poster mentioned, this doesn't come with a quick disconnect, but I've never encountered a tool that does.
Lets couch this review as my "opinion" or experience to protect the feelings of those fans, out there. And I know you're out there.I want to try to do it right, so I go to the only place around that sells "sand" for blasting. My dude doesnt recco the real sand because the small dust can give you whats called "silicosis" which is apparently somewhat like breathing asbestos, or like, pretty bad for your lungs, and doesn't come out.
The initial project was stripping a bicycle frame to polish the bare aluminum. It did the job but my compressor, a little older model of this DeWalt hand carry:  (ASIN#)  B000HZJLV2  rated at 4.5 cfm, 4.5 gallon tank, is only good for about 15 second spurts with a 30-40 second rest.
i used this for an auto restoration. i blasted two fenders and a hood using low psi to avoid warping. occasional clogging occurred but manageable. i used black beauty media. It was not until I bought a pressure blaster that I realized how inferior this was. This unit will work but uses alot more air and time than a pressure blaster would. I recomend the Harbor freight 110pound pressure pot. Make sure you have a large compressor.
I have a large stand-up air compressor and I bought a water separator as recommended by the other reviews. Even so, I was very disappointed with the performance of this product. The gun did not shoot a steady stream of sand but, rather, it would come out in 2 second streams. I used screened and kiln dried sand in two different sizes (fine and coarse). I also tried placing the bucket of sand on the ground and elevating it above the gun.
Draws media well, especially with shortened hose. Reasonably comfortable grip and trigger. Metal threaded tip (chrome end piece in photo) fits fairly poorly with gun body -- it doesn't leak air, but the threads scrape loudly. Problem was cured with a stiff steel brush. Gun disassembles well -- metal tip, ceramic tip and o-ring, and front assembly all come apart easily. Didn't take the trigger apart.
Excellent unit with some variables. Your can use a shorter hose for better sand pickup and lower pressure some. Make your gun portable with a smaller sand container.I like the ceramic tip for superior wearing. Comes with a list of parts for replacement and of course it's a "Campbell Hausfeld". Works well with my 5hp20 gal. air compressor. I will need to try different abrasives to find out which works the best. Keeping the air dry is a must to prevent clogging.
Answer: yes