The 4 Square Head Plug from Fittings Unlimited Inc is a reliable solution for sealing pipe ends. Designed with a square head for easy installation and removal, this plug is compatible with 4-inch pipes. Made from durable materials, it offers excellent resistance to corrosion and pressure, ensuring a long service life. This plug is ideal for use in various applications, including plumbing and industrial systems, where secure sealing is essential. Its straightforward design allows for quick installation, making it a practical choice for professionals.