If you want something commercial grade that will take the abuse and last, check out
They became a sponsor of mine after I had bought their largest propane grill for the parties I throw. Everything they make is commercial grade. They aren't the cheapest out there, but the quality is worth the price if you want serious cooking equipment.
If you are interested I can hook you up with a decent discount, like 35%, from the US sales manager who I work with as my contact at the company, just pm me with your contact info.