The SEALFAST 6" Coupler x 4" Adapter Elbow at a 45-degree angle is engineered for efficient fluid flow in piping systems. Constructed from durable materials, this elbow adapter is designed to withstand high pressure and temperature variations. With a primary size of 6 inches and a secondary size of 4 inches, it seamlessly connects different pipe sizes while maintaining optimal performance. This product complies with industry standards, ensuring reliability in various applications, including HVAC and plumbing systems.