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An innovative product that combines the newest and the best solutions of window joinery.

V70 OPTIMAL BLACK window combines unique design and incredible durability. Thanks to applied solutions V70 OPTIMAL BLACK gives the interior an individual character as well as high energy-efficiency and corrosion resistance.

V70OB Standard Colours

Special Colours

Full range of colours

All Our Premium windows and doors are produced by VETREX Ltd. - one of the leading window manufacturer in Europe. All the components are specially selected to assure highest quality, functionality and energy-efficiency.

Product Description

  • Product Specification
  • Window Types
  • Documentation


  • VEKA, 5-chamber 67mm high rounded frame, 5-chamber 80mm high semi-flush sash, 70 mm installation depth - Class A
  • uPVC sections with outside wall thickness of minimum 2.8mm meet the highest European standard EN 12608 – Class A. The Multi-chambers technology along with additional galvanized steel reinforcement guarantees high stability, improved safety, weather resistance and perfect acoustic insulation
  • Available in full range of colours and wood patterns


  • Galvanized steel. Our modern windows (in standard version) have special repeatedly bent enhancements of galvanized steel in the stiles and jambs of extremely high durability. It is the most important element that guarantees reliability for a long time.


  • As a standard V70 Optimal Black is equipped with low-E, triple glazed unit, Argon filled, 48 mm thick (4-18-4-18-4mm) with heat transfer coefficient Ug = 0.5 W / m 2 * K according to EN 673
  • MASTER THERM warm spacer which reduces the risk of condensation and increases thermal insulation around the window of up to 6%.


  • Multi-point locking system ROTO NTS, fitting with amazing black plating gives unique style. This innovative solution is not only aesthetic but also practical. This fitting is galvanized, chromed and underwent final treatment to make it more resistant to corrosion,
  • Swing SECUSTIK handles with blocking of the rotation mechanism, prevent any attempts to move the locking elements from the outside. Ergonomically shaped handles add elegance and unique character to the window
  • Two anti-burglar security strikers in the frame
  • Micro-ventilation & Tilt - option which provides constant air access without exposing to the cold. When using this options, window is still secured from opening from the outside
  • Four-stage Tilt & Turn mechanism for windows from 1117 to 1716 mm high. This solution allows to adjust the window opening to the prevailing weather conditions. Fresh air is very important to guarantee good health and well-being
  • Lifting mishandling device. Multi-purpose element of the Roto NT system with integrated sash lifter which ensures that the sash always runs up the frame at the same level and also prevents any mishandling operations
  • Tilt-stabilizer


  • EPDM gaskets with outstanding physical and operational values. Less susceptible to ageing, high temperatures and other external forces. Do not break, are ozone-proof and are very resistant to bending, scratching and pressing. Available in three colours
Certificate IFT Rosenheim

Certificate IFT Rosenheim

Technical drawing

Technical drawings

Wide range of layouts & opening options

  • Tall
  • Square
  • Wide
  • Custom Shapes

Most Popular Solutions

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Why choose our windows?

  • Reliability guarantee
  • Quality of services
  • Energy-efficiency
  • Safety
  • Favourable terms of warranty

European Quality Standards

High quality, safety as well as reliability of our products are confirmed by many certificates:

High-end components

All the components are specially selected to assure highest quality, functionality and energy-efficiency:

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