The Copper Washer for Metric from Fittings Unlimited Inc is an essential component for ensuring leak-free connections in plumbing systems. Designed specifically for metric fittings, this washer provides a reliable seal to prevent fluid leakage. Made from high-quality copper, it offers excellent resistance to corrosion and wear, ensuring long-lasting performance. The washer is compatible with various fittings and meets industry standards for safety and reliability. Its compact size allows for easy installation, making it a must-have for any plumbing project.