[travelin texans]

Any appliance, grill, generator, etc that's equipped with a regulator has to be plumbed before (high pressure) the rv regulator or it won't have enough gas pressure, if not equipped with a regulator it must be plumbed after the rv regulator (low pressure) or too much pressure causes an unsafe condition.
As for quick disconnects, there are a variety of different styles for propane use & they must be of the same type/brand to be able to connect. DO NOT use quick connects designed for air hoses, use ONLY those designed for propane.