The 4PLUG-18X1.5MMOR from Fittings Unlimited Inc is an 18mm plug that provides a secure and efficient connection for various hydraulic applications. Constructed with high-quality materials, this fitting is designed to endure high pressure and temperature, ensuring reliability in demanding conditions. With a thread size of 18x1.5mm, it is compatible with a wide range of fittings, making it a versatile choice for professionals. This plug is easy to install and offers a leak-proof seal, making it ideal for use in hydraulic systems and other applications requiring robust connections.