This Mr. Heater Low Pressure Propane Regulator attaches to your propane appliance and allows you to easily control your propane gas supply. 1/4 inch female pipe thread inlet x 3/8: inch female pipe thread outlet For use with low pressure propane appliances up to 115,000 BTUs 25-250 PSI inlet pressure 11-in to 14-in WC outlet pressure Durable zinc construction Precision milled inlets
