This transition coupler by US Coupler is engineered from durable aluminum, providing a reliable and efficient solution for connecting polyethylene duct to PVC pipe or fittings. With right-hand threads on the polyethylene end and NPT female threads on the PVC end, the unit ensures a secure and air-tight connection rated for up to 180 psi, making it suitable for various applications requiring a robust seal. Its smooth wall design and ability to accommodate custom sizes make it a versatile choice for both standard and specialized projects within the pipe and conduit category, particularly in the realm of HDPE couplers and sweeps.