The Male thread version has external BSP threads that screw into a female-threaded port (e.g., a valve body or manifold). The Female thread version has internal BSP threads that accept a male-threaded fitting or pipe end. Choose based on the thread type of the port you are connecting to.

Measure the inner diameter (ID) of your flexible hose. The barb tail diameter should generally match or be slightly larger than the hose ID for a secure, leak-resistant grip. For example, a 6mm (≈1/4") tail suits 6mm ID hose, and a 12mm (≈1/2") tail suits 12mm ID hose.

These fittings are generally suitable for fuel, oil, and mild chemical lines. However, always verify that both the fitting material and your hose are chemically compatible with the specific fluid before installation, especially for concentrated fuels or solvents.

These fittings use BSP (British Standard Pipe) threads. BSP threads are not directly interchangeable with NPT (National Pipe Thread) fittings without an adapter. Always confirm your system's thread standard before ordering.

For liquid and fuel applications, applying PTFE thread seal tape to the BSP threads is generally recommended to ensure a leak-free connection. For compressed air lines, PTFE tape is also advisable as a best practice.

These barb fittings are compatible with flexible hoses including PVC, rubber, silicone, and polyurethane tubing. For higher-pressure or vibration-prone applications, secure the hose over the barb with a hose clamp for added retention.

Pressure ratings vary by size and hose type. These fittings are generally suitable for low-to-medium pressure applications such as air lines, fuel systems, and water circuits. Always confirm the rated pressure for your specific application before installation.