This miniature cartridge needle valve is offered for precise flow adjustment in an extremely compact package. The product can be used to control mini-cylinders, nozzles, timing circuits, filling heads, bleed vents, and in many other applications. It is designed for incorporation into manifold assemblies. Cartridge valves in concert with a manifold offer a smaller envelope, reduced assembly time, and fewer parts. O-ring seals throughout the valve ensure a leak proof installation.