The RV Two Stage Regulator is used primarily on Class A, B or C Motorhomes to reduce the ASME Tank propane pressure from actual tank pressure to 11″ W.C. in order to supply to coach piping system optimal pressure to power the appliances. The first stage reduces cylinder pressure to 10PSI and sends it to the second stage where it is reduced to 11″ W.C. Because the pressure is reduced in two stages, and because the second stage receives a consistent inlet pressure, the regulator provides a very even, efficient flow of gas.