14-Pc Air Hose Fittings Kit – 1/4" NPT Coupler & Plug Set
14-Pc Air Hose Fittings Kit – 1/4" NPT Coupler & Plug Set
HUXUAN 14-Piece Industrial Air Hose Fittings Kit
Keep your pneumatic tools running at peak efficiency with this professional-grade 14-piece air hose fittings kit from HUXUAN. Built from corrosion-resistant aluminum with a protective coating, this complete coupler and plug set is engineered for heavy-duty use in workshops, garages, auto shops, and job sites alike.
Made in Mainland China.
Why You'll Love This Kit
- Corrosion-Resistant Aluminum Construction: The protective coating guards against rust and wear, delivering reliable, long-lasting performance in both indoor and outdoor environments.
- Secure 6-Ball Locking Mechanism: The precision 6-ball locking system creates a firm, stable grip between coupler and plug — minimizing accidental disconnections and maintaining consistent airflow. Pre-coated adhesive threads form a tight, leak-free seal for maximum efficiency.
- Quick-Connect, One-Handed Operation: The user-friendly quick-connect design lets you swap air tools in seconds with just one hand — no fuss, no wasted time on the job.
- Universal Compatibility: Works with I/M, ARO, and T-type air plugs and is interchangeable with most major brand fittings, making it versatile enough for any workshop environment.
- Wide Application Range: Ideal for auto repair shops, body shops, construction sites, home garages, and industrial operations — wherever reliable, high-flow air connections are essential.
Specifications
| Material | Aluminum (with protective coating) |
| Color | Red |
| Thread Size | 1/4 Inch |
| Thread Type | NPT |
| Locking Mechanism | 6-Ball Locking System |
| Connector Type | Plug & Coupling |
| Compatibility | I/M, ARO, T-Type Air Plugs; most major manufacturers |
| Applications | Auto Repair, Body Shops, Construction, Home Garages, Industrial Use |
What's Included (14 Pieces)
- 6 × Male Plugs
- 4 × Female Plugs
- 2 × Male Couplers
- 2 × Female Couplers
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Frequently Asked Questions
Q: What thread size and thread type do these air hose fittings use?
A: These air hose fittings feature a standard 1/4-inch NPT (National Pipe Thread) thread size, making them compatible with the vast majority of air compressors and pneumatic tools available on the market today.
Q: Are these air couplers compatible with my existing air plugs?
A: Yes! The universal coupler design is compatible with I/M, ARO, and T-type air plugs and is interchangeable with fittings from most major manufacturers, giving you maximum flexibility across different tool brands and workshop setups.
Q: What material are these air hose fittings made from, and are they durable enough for heavy use?
A: These fittings are made from high-quality aluminum with a protective anti-corrosion coating. The robust construction is designed to withstand demanding heavy-duty use in auto repair shops, construction sites, home garages, and industrial environments — resisting rust and wear over time.
Q: How does the 6-ball locking mechanism work?
A: The 6-ball locking system secures the plug firmly inside the coupler, creating a stable connection that resists accidental disconnection during use. Combined with pre-coated adhesive threads, it also forms an airtight seal that prevents air leaks and ensures steady, efficient airflow to your tools.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.