Theres a couple of places you can get them, You can get them at Home Depot in the sprinkler section, You can get a bag of them there for like $.50. Heres a good place to get misters.
http://www.plumbingsupply.com/misterscooldown.html
Here is the company that makes the Sprayers I use. There a little pricey at a $1.75 ea, But I think there worth it. Somewhere on there is a list of there distributers, Just look for one near you
http://www.americanagritech.com/accessories.html#misc PHP Code:
what size tubing should I buy?
I use 3/4 pvc pipe
Aerobuds 