The Dwyer Instruments 24-W/M Flex Tube Manometer 12-0-12″ Gauge 1223-24-W/M is a flow controller designed for measuring flow rates in various industrial applications. This manometer features a flexible tube design for accurate readings and is manufactured by the reputable brand DWYER. With a model line specifically known as FLEX TUBE and a model number of 1223-24-W/M, this product is a reliable tool for controlling and measuring pumps and fluids in hydraulics, pneumatics, and plumbing systems. Perfect for businesses and industries that require precision in their flow control processes.