The 3″ x 2-1/2″ Part C Aluminum Reducer Coupler Shank is a durable, high-quality fitting designed to connect a 3-inch pipe to a 2-1/2-inch pipe. Featuring a shank design, it ensures a secure, leak-proof connection while transitioning between pipes of different sizes. Made from corrosion-resistant aluminum, it is lightweight yet strong, making it ideal for industrial, plumbing, and HVAC applications. The Part C specification ensures compatibility with standard system components, providing a reliable and efficient solution for fluid and gas transfer systems that require size reductions.