The SEALFAST 4" Coupler x 3" Adapter made from aluminum is designed for seamless connections in fluid transfer systems. This lightweight yet durable adapter is perfect for applications requiring a reliable transition between different pipe sizes. The aluminum construction ensures resistance to corrosion and wear, making it suitable for both indoor and outdoor use. Its precise dimensions guarantee a snug fit with standard couplers, enhancing system efficiency. This adapter is an essential component for maintaining optimal flow in various industrial applications.