REGO HYDRAULIC IN LINE NEEDLE VALVE 1/4″ NPT PORTS DESIGNED FOR THE PRECISE CONTROL OF AIR AND HYDRAULIC FLUIDS. PRECISION-MACHINED LONG TAPERED STEM WITH FINE THREADING PROVIDES EXACT CONTROL. LOCK NUT PROVIDED TO SECURE FLOW SETTINGS. DURABILITY PROVIDED BY RUGGED, ALL METAL CONSTRUCTION WITH NO PLASTIC PARTS. STEEL VALVES ARE ZINC PLATED AND SEALED WITH “GOLDEN CHROMATE” FOR DOUBLE CORROSION PROTECTION.