This is just a Gilmour foamaster with a branded quart bottle. They come in quart and half-gallon. Search for Gilmour and you will find a lot of info. I have a Gilmour and you can't beat it for a traditional wash, but I use ONR a lot too.
BTW: unless you just want that logo, I got mine direct from Gilmour for $39.
as stated, it's just a re-branded gilmour foam gun as is the AG, and pinnacle too. also the butchers, and simple green foam guns are made by gilmour as well...