I was parked to someone at the Goshen rally a year and a half ago and he had Lippert replace his with the six point landing system. It brought smiles to his face. He also was given a brass check valve by Jim B when his plastic one leaked. He had to remove everything out of the storage bay, remove the storage bay walls, and run a fan for two days to dry it out. Anyone with a water heater plastic check valve need to replace it with a brass one.