The Elster American Meter Series 1800C pressure regulators are designed for natural gas applications and feature a compact, lightweight design for fast, easy installation. Interchangeable orifices and springs provide a wide range of outlet pressures and flow rates. Outlet pressures between 3.5" W.C. and 2 PSIG are available. Operating temperature range is -20°F to 150°F (-30°C to 65°C). Maximum flow rate is 2500 SCFH (70.8 m3/h). Visit FaucetDepot.com for all your American Elster Gas Meter needs!