1/4" Automatic Six Ball Combo Coupler, Industrial & Acme, 3/8" FPT

 FAQs

Q: What does "automatic" locking mean?
A: The six-ball locking system automatically engages under pressure and incorporates a drag guard to prevent accidental disconnections—ideal for quick one-handed use and reliable seal performance.

Q: What thread size does it use?
A: This model features a 3/8″ female NPT inlet—be sure to use it with standard 3/8″ male NPT fittings. 

Technical Resources

Couplers & Connector Sizing Chart

Coilhose Pneumatics delivers the 15C90B6F for safe, efficient pneumatic systems—offering fast couplings, industrial-grade reliability, and easy adaptability to different plug types.

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