Has anyone heard of or used gasflex tubing to hook-up propane gas logs or heaters. Someone is selling this on e-b*y. He says it can be buried outside but if you look at the code book he also posted it says no aluminum is to be buried outside.

This does have pe on the inside and outside of the aluminum. Don't know if that makes a difference for code.

I'm looking to run a 50 ft line to a stand alone greenhouse from a 100 gallon tank that I currently have going to gas logs inside the house.