[prndl]

Sourdough, If what RV manufacturers have been installing is illegal or outside of the standards of the RV industry they would be stopped. Maybe Montana's come with less expensive parts does not mean they are unsafe. In all your investigations have you ever found any issue due to the manufacturer of the gas valves? If they are unsafe they would be causing problems long before you came along and noticed an issue. You seem like a hammer looking for a nail. People on this forum like most forums come looking for solutions to actual problems. They do not represent ALL the owners of Montanas. If your red valve is making noise replace it. I did. It does not make the Montana brand deceptive or wrong. All the people thinking they are smarter than the engineers at Montana and deciding to eliminate the red valve are looking for trouble. If you want to "upgrade" your LP system go ahead. What came from the factory is fully usable for hundreds of thousands of RV owners.