That's a fact..new Fed. law goes into effect Apr.1 for the vertical tanks only like for bbq's and older mohos, but the horizontal tanks like in newer motorhomes are ok. The tank fitting is larger but has threads on the inside for the old hose to fit inside the new tank fitting. I just got a new motorhome mag. and just skimmed the article. Right now I have 5 tanks to trade but the're all full.. 83K5 Silverado What was that bump? I want people to know why I look this way. I've traveled a long way and some of the roads weren't paved.