The burners are low pressure from Agrisupply (link here) (BTW, Agrisupply has the best price on most burners. If you haven't made your purchase yet, compare them with your other sources). The regulator is off my previous jet burner (link here). I don't know how many PSI it is, I think it actually might be a high pressure regulator but I haven't noticed any issues yet. Very coarse adjustment is possible with the yellow ball valves (think High, low, and off and nothing really in between). If I need adjustment beyond what the ball valves provide, I will open them up all the way and adjust the regulator up or down.