With the profiles of the EK70TH Essential Eklip series, the mechanical resistance guaranteed by the aluminum profiles is combined with thermal insulation technology with 25% glass fiber and polyolefin foam, capable of reducing the thermal conductivity of the material (polyamide) compared to standards . The EK70TH Essential system, with concealed or semi-hidden sash, allows you to incorporate the ARCH INVISIBLE handle, being able to also hide the hinges and the drainage system.