This aluminum transition coupler facilitates the seamless connection of polyethylene (HDPE) duct to PVC pipe or fittings, enhancing the versatility of your piping system. Designed with ribbed exterior walls, it ensures a secure grip and maintains an airtight seal rated for up to 180 psi, making it ideal for high-pressure applications. With a nominal duct size of 1.25 inches, this coupler is not only robust but also customizable in various sizes to meet specific project requirements. Whether used in industrial settings or construction projects, this durable coupler plays a critical role in ensuring a reliable and efficient fluid transport system.