The 4" Copper Gasket from Fittings Unlimited Inc is designed for reliable sealing in various applications. Made from high-quality copper, this gasket ensures durability and excellent thermal conductivity. With a diameter of 4 inches, it is ideal for use in plumbing and HVAC systems. The gasket meets industry standards for performance and compatibility, making it a trusted choice for professionals. Its robust construction allows it to withstand high pressure and temperature, ensuring a secure fit in your piping systems.