The 6Plug-4FP from Fittings Unlimited Inc is a versatile 4mm plug designed for secure connections in various applications. This fitting features a compact design, making it ideal for tight spaces. With a thread size of 4mm, it is compatible with standard fittings, ensuring ease of use. Constructed from high-quality materials, this plug is built to withstand pressure and temperature variations, making it suitable for hydraulic systems and other demanding environments. Its reliable performance and easy installation make it a preferred choice for professionals.