The 1-1/2" ID, 2-3/8" OD Basin Mack Washer by Braxton Harris is designed to provide a secure seal in plumbing applications. Made from durable materials, this washer is resistant to wear and tear, ensuring long-lasting performance. Its precise dimensions make it compatible with standard basin fittings, preventing leaks and ensuring efficient water flow. Ideal for use in sinks and basins, this washer is a reliable choice for both professional plumbers and DIY enthusiasts. It meets industry standards for quality and performance, making it a trusted addition to any plumbing toolkit.