Bought this grill because I needed a replacement for my RV grill which is low pressure. Had a cable and low pressure valve to replace on the 2200 grill.   Called Weber support and they said I couldn't replace the valve.  Used the new grill on RV trip and every meal came out a disaster. The grill was not able to seer the chops and burgers that I cooked, The flame level was very, very low. Later I found out that Weber sells a low pressure grill. 
I guess I am out on cooking on the  2200 grill.

Jerry