Secure your systems with the Fairview Fittings 121-B Plug Hex Head, designed for 1/4 MPT applications. This robust plug is essential for blocking off unused ports in plumbing and mechanical systems, ensuring a tight seal and preventing leaks. Made from durable materials, it withstands high pressure and corrosion, making it a reliable choice for various applications. Its hex head design allows for easy installation and removal, even in tight spaces. Ideal for both professionals and DIY enthusiasts, the Fairview Fittings 121-B Plug is a must-have for maintaining the integrity of your systems. Choose quality and reliability with Fairview!