A fitting tube is a short section of tubing used with connectors, adapters, or valves to join components in a pneumatic or fluid system. It ensures a secure, leak-free path for air, gas, or liquid, maintaining proper system performance and reliability.

Fitting tubes are commonly used in automation systems, industrial machinery, and fluid circuits where flexible or precise connections are needed. They simplify assembly, allow easy replacement, and help maintain clean and efficient flow throughout the system.