Universal Compatibility: This versatile coupler eliminates the need for multiple fittings by working seamlessly with the three major air plug styles: Industrial (Type M), Automotive (Type T), and ARO (Type A). Secure 6-Ball Design: Features a high-performance 6-ball locking mechanism that ensures a tighter seal and prevents accidental blow-offs, even when under maximum pressure. One-Handed Quick Connect: Engineered for speed and efficiency, the quick-connect design allows for effortless one-handed coupling and uncoupling to keep your workflow moving. High-Pressure Performance: Rated for up to 300 PSI and a powerful 40 SCFM airflow @ 90 PSI, providing reliable performance for all but the most demanding pneumatic tools. Easy Identification: Save time searching through your toolbox with clear, permanent size and type markings stamped directly onto the coupler body for instant recognition.