PERT-AL-PERT is a multi-layer composite pipe that combines the best attributes of both plastic and metal. It features an inner and outer layer of PERT bonded to a central core of aluminum. This construction gives it a unique advantage: it holds its shape when bent, much like soft copper, allowing for neater, more secure installations with fewer supports. The aluminum core provides a 100% oxygen barrier and significantly reduces thermal expansion, making it a highly stable and reliable choice for high-pressure and high-temperature applications.