The 4 Tube Plug Straight from Fittings Unlimited Inc is designed for efficient sealing in various tubing applications. This fitting is crafted from high-quality materials, ensuring durability and reliability. With a standard size of 4, it is compatible with a range of tubing systems. Ideal for use in pneumatic and hydraulic systems, this plug provides a secure connection, preventing leaks and ensuring optimal performance. Its robust design meets industry standards, making it a reliable choice for professionals.