The Dormont RV48CL-42 is a 3/4″ convertible gas appliance pressure regulator for main burner and pilot applications. It is factory preset to deliver 5″ W.C. outlet pressure on natural gas and converts to 10″ W.C. for LP gas, with a maximum inlet pressure of 1/2 psi. High strength aluminum castings and a rubber seat poppet design provide a capacity of 250,000 BTU/hr on natural gas and 400,000 BTU/hr on LP gas. Suitable for natural, manufactured, mixed, LP or LP gas-air mixtures. Tested for multi-position service, it may be installed in any plane or angle without restriction. Certified to ANSI Z21.18/CSA 6.3.