Rego CFF250G Needle Valve New Leak-Free Shut Off 1/4" Female NPT With 2000 PSIG Pressure Forged Brass Body Compact design provides easy installation. Fine stem threading and long taper allow precise metering and leak-free shut-off. Internal stop prevents the stem from being accidentally unscrewed from the body. Working temperature range is -40F to +165F; Maximum operating pressure: 2000 psig air. Cleaned for oxygen service per CGA G-4.1. (We also carry all rego valves and cylinder accessories)