The 20 Blanking Plug with O-Ring Heavy from Fittings Unlimited Inc is designed to securely seal off unused ports in piping systems. This plug features a 20 size and includes a heavy-duty O-ring for enhanced sealing performance, preventing leaks and ensuring system integrity. Constructed from high-quality materials, it is resistant to corrosion and suitable for various applications, including plumbing and industrial use. This blanking plug meets industry standards, making it a reliable choice for professionals looking for durable sealing solutions.