This one doesnt need one with the regulator I have, but can be used with one if you want, but needs a different regulator I believe. The one on IG's site is a blower forge and having seen them in action this weekend, you can do ANYTHING with them. I think IG said they melted a stainless pipe fitting on one...
I mainly will be using this for HT, but will most likely use IG's forced air 1.5" blower one for forging and welding up cable damascus.