Good price brass needle valve is designed to regulate flow to an instrument or other industrial application, and with 1/4 inch thread. This valve can be used as a reliable shut-off valve, or to accurately control flow rates of clean gases or fluids.
Tips: What is a brass needle valve?
Brass needle valves are designed for air or water service up to 150psi (these particular needle valves are NOT designed for welding or CGA applications). They have a metal to metal seat and will allow fine control of flow.