The MEGR-291H High Capacity Compact Integral Two Stage Regulator is ideally suited for high demand RV, outdoor appliances, cabins, seasonal homes, gas fire places, water heaters, ranges or other moderate to low demand domestic home installations.(Green bonnet identifies high capacitymodel). High Capacity Compact 2 Stage Regulator 1/4''FNPT x 3/8''FNPT - End Vent. BTU/Hr LPG @ 30 PSI Inlet 225,000.