This product is a compact threaded manual valve with a steering switch and a pneumatic quick connector, designed for precise on/off control in pneumatic systems. It supports multiple thread sizes and PU hoses, making it a versatile addition to small to midsize air lines. Model 1203. Key benefits Simple manual control: a ball valve provides reliable, easy turning on and off of compressed air without tools. Versatile connections: threaded options include 1/8, 1/4, 3/8, and 1/2 inch, enabling flexible integration with common pneumatic ports. Hose compatibility: designed for PU hoses with outer diameters of 4, 6, 8, 10, or 12 mm, simplifying hose selection. Quick setup: integrated pneumatic quick connector facilitates fast installation and removal in test benches or workstations. Compact and convenient: small footprint allows installation in tight spaces and portable setups. Key attributes Functionality: threaded manual valve paired with a steering switch and a pneumatic quick connector for straightforward air control. Compatibility: supports thread sizes 1/8', 1/4', 3/8', and 1/2'; PU hose OD options 4, 6, 8, 10, 12 mm. Size and form: 1 piece per package; model number 1203. Material: material information not specified in listing. Performance: provides reliable manual shutoff and control within pneumatic circuits. Applications and use cases and workshop air tool control: turn on/off the air supply to small pneumatic tools, drills, or blow guns without removing hoses. System isolation and testing: quickly isolate sections of an air line during maintenance or diagnostic checks on pneumatic circuits. Educational and prototype setups: convenient for teaching basic pneumatics or assembling test rigs that require adjustable flow control. Notes This description reflects the product's listed features: 1 piece, threaded manual valve, steering switch, pneumatic quick connector, PU hose OD compatibility (412 mm), thread options 1/8, 1/4, 3/8, 1/2 inch, model 1203. Material details are not specified in the listing.