The 1" Insulator Sleeve for Dielectric Union is a crucial component for preventing galvanic corrosion in plumbing systems. Constructed from high-quality insulating materials, this sleeve effectively separates dissimilar metals, extending the life of your plumbing connections. Its 1" size is compatible with standard dielectric unions, ensuring a secure fit. This insulator sleeve is perfect for both residential and commercial plumbing applications, providing peace of mind and reliability in your water systems.