The company uses the REHAU window profile in German technology in the production of the product. The double -glazed windows made of this material are divided into categories: economy class — models of series 3 and 4 Rehau Euro Design and Rehau Delight Design. These are the most popular products, since the window frames of these series have low prices, but quite high quality characteristics. They have water resistance, noise insulation, have good light permeability of glasses and thermal insulation suitable for moderate climatic zones. The cost of a double -glazed window from 8000 rubles, products are sold in installments, there are discounts. For those who pay special attention to design, the 4 Rehau Delight Design series is more suitable, it has rounding and smooth transition lines of the profile; Windows of the middle price category are models that can be operated in more harsh conditions. They have a higher characteristics of sound insulation, they preserve heat better, have a silicone heat insulator, multi -chamber double -glazed windows. Models of this level include the 5th series of Rehau Delight Design New. The average price category also includes windows that have non -standard decisions on design, form. For example, French windows, Ivory-Flower windows (ivory), which have a luxurious look and many people like; premium double -glazed windows Rehau Brillat/Delight Design, relating to the 6th series. These are the products of an elite class, it is in demand by wealthy citizens and is characterized by a huge number of advantages among which six -chamber double -glazed windows, exquisite design and rounded wings lines. Many technical characteristics of these products are higher than the previous series, although in terms of sound insulation characteristics they are inferior to 5 models for several orders of magnitude. The most significant advantage is the high area of the light opening — 1364 cm. sq., which exceeds the corresponding indicator of the product 5 of the series by a third. In the same category, stained glass windows of magnificent design and complex shape are offered.