Pretty sure it’s 710 but not positive. I don’t think you could use a cart…won’t fit, the way the tip screws on is way up in there. The tips are cleanable…I’ve only replaced one, and it was my fault…I broke it lolWith everything being said and IF I was buying a new portable rig i'd be getting that hunibadger it comes with the bubbler and frank says the tips last plus I ASSUME you could run carts on it as well.. is the hunibadger 510 or 710 thread @Frank the Dank
or the get the cricket little more pricey though and no carts some many rigs so little money