The 4Hex Socket Plug from Fittings Unlimited Inc is a high-quality plug designed for secure closure of piping systems. This hex socket plug features a standard size that fits most common applications, ensuring compatibility with various fittings. Made from durable materials, it offers excellent resistance to corrosion and wear. Its design allows for easy installation and removal, making it ideal for both residential and commercial use. Compliant with industry standards, this plug guarantees reliable performance in fluid transfer systems.