The King Tony SY-310H 3/8″ hose european air quick coupler is part of King Tony’s European series of pneumatic connectors, engineered for high-efficiency airflow. Designed for tool-free, one-handed connection and disconnection, it facilitates rapid assembly and disassembly of air lines. A built-in spring-loaded shut-off valve automatically seals the air line when disconnected, preventing leaks and hose whip. Constructed from high-hardness heat-treated steel with a nickel-plated finish, it resists rust and corrosion, ensuring long service life. Capable of handling pressures up to 145–150 PSI and operating reliably in environments up to 105°C (221°F), this coupler is ideal for both light and heavy-duty pneumatic systems.
TECHNICAL DETAILS:
| Specification | Details |
| Brand | King Tony |
| Model | SY-310H |
| Size | 3/8 inch |
| Type | European |
| Type of Product | Air Quick Coupler |
| Weight | 75 g |
| Working Pressure | Up to 145–150 PSI |
| Airflow Profile | European standard (NW 7.2 mm, high-flow) |
| Connection Style | Quick connect/disconnect, one-handed operation |
| Material | Heat-treated steel, nickel-plated finish for corrosion resistance |
| Safety Features | Built-in spring-loaded shut-off valve |
| Temperature Resistance | Up to 105°C (221°F) |
| Application | Pneumatic connectors, air hoses, compressors, automotive and industrial tools |







