MultiPert presents a five-layer structure: the internal and external layers are made of polyethylene of raised temperature resistance (PE-RT) and, on the internal part, contain a barrier against gas diffusion realized in EVOH. The barrier is attached to the internal and external PE-RT layers with two sheets of adhesive.

The polyethylene of raised temperature resistance gives the MultiPert tube a great
reliability under the conditions of pressure and temperature typical of the heating systems, and a significant resistance against corrosion and against several chemical substances. The PE-RT layers are characterized by a smooth surface
which drastically reduces the rise of incrustations and allows for very contained heat losses, The MultiPert tube, thanks to the lightness, the extreme flexibility and the
simplicity of bending that characterize it, makes it possible to perform very simple and quick installations.

In order to ensure the quality of the product, in accordance with law DIN 16833, Unidelta subjects the MultiPert tube to severe and rigorous controls, and it also constantly monitors the performance of the entire productive process.