The 3018GR-17 Locking Coupler Style Chuck Astro Pneumatic is an efficient and reliable push-on auto-locking coupler designed for tire valve stems with a 1/4” NPT thread. Compatible with most air hose tool attachments, this chuck provides a secure connection for seamless tire inflation. It performs best when paired with Astro models 3018, 3018GR, 3081, and 3082, though it is versatile enough to work with a wide range of air tire inflators.

Engineered with a blow-through design, the 3018GR-17 Locking Coupler Style Chuck Astro Pneumatic is specifically intended for use with inflator tools and not for direct attachment to air lines. Its durable construction and user-friendly design make it an essential tool for professionals and DIY enthusiasts seeking reliable performance during tire maintenance tasks.