PrecisionGeek 1/8 NPT to 4mm 5mm Push-On Barb Fitting –Blue Anodised Aluminium Hose Tail Adapter for Vacuum Lines, Coolant, Air Systems, Fuel, DIY & Custom Automotive Applications

• Durable Lightweight Aluminium – CNC-machined from anodised aluminium for high strength, corrosion resistance and reduced weight; ideal for compact setups.
• Universal Push-On Barb Design – Designed to securely fit 4mm to 5mm inner diameter (ID) flexible hoses; push-fit barb ensures leak-resistant connection.
• Thread Size & Compatibility – Features a standard 1/8” NPT male thread; compatible with threaded ports in automotive, industrial and pneumatic systems.
• Ideal for Custom DIY Projects – Perfect for car builds, vacuum routing, turbo setups, fuel or coolant systems, as well as lab and workshop use.
• High-Precision Manufacturing – Produced using CNC machining for exact tolerances, ensuring reliable thread engagement and hose fitment.
• Anodised Blue Finish – Stylish, corrosion-resistant blue anodised coating adds both performance and visual appeal to your setup.
• Compact and Easy to Install – Lightweight and compact form factor allows easy integration into tight spaces; install with standard spanners or socket tools.

The PrecisionGeek 1/8 NPT to 4mm–5mm Aluminium Push-On Barb Fitting is a high-performance adapter designed for precision and durability in tight spaces. Ideal for automotive, industrial, or custom DIY builds, this CNC-machined fitting allows you to connect small-diameter hoses to standard 1/8” NPT threaded ports with confidence. Its lightweight anodised aluminium body is both corrosion-resistant and visually appealing, making it perfect for turbo vacuum setups, coolant lines, air systems or custom fuel routing. The barbed tail ensures a firm and secure hose grip without clamps in low-pressure applications. Whether you're working on a performance car project, repairing lab equipment, or building a compact pneumatic system, this blue aluminium fitting provides a clean, leak-resistant, and professional solution. 1/8 NPT to 4mm - 5mm (I.D of your hose) push on barb straight connector from NPT to barb Easy connection of your hose to NPT fittings. Prduct Spec: 1/8 NPT to 4mm-5mm (I.D of your Hose) Male to Male Union Connector CNC Machined to highest engineering standards Tight Secure & Leak Free Connection Check our Shop for more precision engineered products