The SMC AS3211FG-03-12A is a high-performance pneumatic speed controller designed for precise flow control in industrial automation systems. Featuring a stainless steel construction, this elbow-type controller is ideal for corrosive environments. It includes a push-lock mechanism and one-touch fittings for easy installation and compact design. Part of the AS-FG Series, it offers enhanced control with a 10-turn needle adjustment, making it suitable for applications requiring fine-tuned flow regulation. Compatible with both meter-in and meter-out configurations, this controller is a versatile choice for optimizing pneumatic system performance.