Excellent torch. Solder an excellent joint. I use it for soldering copper, mainly 1/2" and 3/4". I use the A-3 that came with the kit and the A-5 that I already had. The A-8 is too big for what I do so I might sell it or use it for big joints one day. I just replaced the regulator on my current setup but I suspect it's a new hose etc. It had the same functions as my current one.