Made to any size, not only in cross-section but also in depth, face frame width and configuration of the Z-shaped louvres. Made entirely of 0.9 mm galvanized steel. The extra-strong RED-NNst-OS grille is easy to install yet reliable, functional and durable. It can be used to cover ventilation shaft outlets in buildings of any type and purpose. The grille is considerably heavy, which should be taken into account before installation.

Design: The external galvanized steel grille is made entirely of 0.7 mm sheet metal without spot welding

Finish: Powder coating is applied at the factory in colours from the international RAL scale. The polyester coating reliably protects the metal against oxidation and the paint itself against fading

Size: Minimum recommended size 100x100 mm. Maximum recommended size 1200x1200 mm.

Installation: The external galvanized grille is fixed with self-tapping screws through the front or side of the grille frame.