Just wanted to share my experience with this inexpensive air undercoating gun. The Astro UCG100. I picked one up off the amazon machine for about $30 a few weeks ago and it makes a great broadcast sprayer for woolwax or fluid flim. WW and FF bottles thread right onto it. Astro hasn't failed me yet. I have some of their hand tools as well. It's been in the high 80s in my area lately, which is when I like to re-spray my vehicles. Got two done today.