The 1" Dielectric Union Washer by Braxton Harris Co Inc is a crucial component for preventing galvanic corrosion in plumbing systems. This washer is made from high-quality materials, ensuring durability and long-lasting performance. With a size of 1 inch, it is suitable for various plumbing applications, effectively separating dissimilar metals to protect your piping system. Ideal for use in water supply lines, this product complies with industry standards, making it a reliable choice for both residential and commercial plumbing needs.