The King Tony SY-221F 1/4″ BSPT asian air quick coupler is part of King Tony’s Asian series of pneumatic connectors, engineered for compatibility with Nitto/Japanese interchange fittings. Featuring a female BSPT 1/4″ thread, it is commonly used to connect air hoses to compressors or tools with male BSPT fittings. Constructed from hardened steel or plated alloy, it resists wear and corrosion, ensuring long service life. Its spring-loaded quick-release mechanism allows one-handed tool disconnection while automatically sealing the air line to prevent leaks and hose whip. Designed to fit standard 20-series Asian-style plugs, this coupler is ideal for professional pneumatic systems in workshops, factories, and construction sites.
TECHNICAL DETAILS:
| Specification | Details |
| Brand | King Tony |
| Model | SY-221F |
| Size | 1/4 inch BSPT |
| Type | Asian (Nitto/Japanese interchange) |
| Type of Product | Air Quick Coupler |
| Connection Gender | Female thread |
| Weight | 28.6 g |
| Material | Hardened steel / plated alloy for corrosion resistance |
| Safety Features | Spring-loaded quick-release, automatic shut-off valve |
| Compatibility | Standard 20-series Asian-style plugs |
| Application | Pneumatic connectors, air hoses, compressors, automotive and industrial tools |
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