The 3/4" Dielectric Union Washer is designed to prevent galvanic corrosion in plumbing systems by providing a non-conductive barrier between dissimilar metals. This washer is essential for maintaining the integrity of your plumbing connections, especially in systems that involve copper and galvanized pipes. Its durable construction ensures a long-lasting seal, preventing leaks and enhancing system performance. Ideal for both residential and commercial applications, this dielectric union washer is easy to install and compatible with standard fittings, making it a must-have for any plumbing project.