RECEIVER
The receptacle part of a trailer hitch which accommodates inserts such as ball mounts, drawbars or accessory carriers. Common receiver sizes are 1-1/4" and 2".
REEFER
A slang term for the refrigerator in your RV.
REGULATOR
The LP valve controlling the gas flow through all appliances, and maintaining the appropriate pressure in the LP gas system.
RELIEF VALVE
A safety release in RV systems which opens when the temperature or pressure exceeds set limits. They are found on LP gas systems, and on pressurized water systems.
RIG
What many RVers call their units.
ROOF AIR CONDITIONING
An air conditioning unit that is mounted on the roof of an RV, to cool the RV when parked. When moving, most RVs are cooled by separate air conditioning units that are components of the engine, or they may be cooled by a roof top, if a proper size generator is installed.
RUNNING GEAR
A general term referring to the suspension system, axles, brakes, bearings, wheel and tires.
RVDA
Recreation Vehicle Dealers Association
RVIA
Recreational Vehicle Industry Association
RWD
Rear Wheel Drive.