The telescopic wall box with exhaust grille from Hastrag is an efficient solution for room ventilation. It is made of high-quality aluminum, providing a durable and corrosion-resistant construction. The one-sided aluminum louver grille with drip edge ensures effective air circulation, while the rubber-mounted backdraft damper made of galvanized sheet metal prevents the ingress of unwanted air. With an extendable length of 350 to 550 mm, the wall box adapts flexibly to various wall thicknesses. Performance measurement is in accordance with the EN-13141-2 standards, ensuring reliable functionality. This wall box is ideal for applications where controlled exhaust is required and contributes to improving indoor air quality.

• Extendable from 350 to 550 mm for flexible installation
• Rubber-mounted backdraft damper to prevent drafts
• Performance according to EN-13141-2 for reliable functionality
• High air throughput of 300 m³/h for effective ventilation.