Hromee Universal Air Coupler & Industrial Air Plug Kit — 1-4-Inch Threads, 36-Piece Fittings

Elevate your air tool setup with the Hromee Universal Air Coupler and Industrial Air Plug Kit. This 36-piece collection uses 1/4-inch NPT fittings and a compact aluminum build designed for daily workshop use. The kit blends universal compatibility with durable construction to help you connect quickly, no matter the brand or system.

Universal compatibility for mixed systems

The six locking-ball coupler design accepts most major standards—Industrial (I/M), ARO (A), and Automotive (T)—so you can swap tools without worrying about fit. The push-on action delivers quick connections without the need to pull a sleeve back during each use.

• Six locking balls create a secure, easy-to-use connection
• Push-on style enables automatic coupling for fast setup

Aluminum strength that lasts

All connectors are anodized aluminum, offering high corrosion resistance, longer life, and smoother operation in busy shop environments. The lighter weight also reduces fatigue during frequent assembly and disassembly.

What’s included

• 4 pcs 1/4 inch FNPT air coupler
• 4 pcs 1/4 inch MNPT universal air coupler with 1/4 inch body size
• 12 pcs 1/4 inch MNPT air plug
• 8 pcs 1/4 inch FNPT air plug
• 4 pcs male couplings
• 4 pcs female couplings

Interchangeability and shop-ready design

All pieces share a 1/4-inch body size and thread, promoting cross-brand compatibility and simple upgrades to existing hose assemblies. The compact kit fits neatly in a tool bag or cabinet.

Real-world benefits

• Quicker tool changes reduce downtime on busy days
• Cross-brand compatibility supports mixed tool inventories
• Durable aluminum construction helps with repeated assembly