The GENTLE Speed Controller series covers 4–12 mm Standard and 4–6 mm Mini types, each designed with built-in one-way check for stable low-flow regulation. Standard models provide full-size coverage for general automation and larger cylinders, while Mini models are 40% smaller for compact spaces and micro cylinders. With one-touch installation and Taiwan-made precision quality, these valves ensure reliable, leak-proof control for automation lines, semiconductor processes, and laboratory equipment.