FITS STANDARD 4” DUCTS – Compatible with all 4-inch round ventilation openings. Ensures secure fit and smooth airflow for both exhaust and intake systems in residential or commercial HVAC setups. SCARTCH RESISTANT METAL CONSTRUCTION – Made from corrosion-resistant metal with a white finish. Built to withstand temperature changes, moisture, and long-term indoor or outdoor use. BUILT-IN MESH PROTECTION – Fine integrated mesh screen keeps dust and debris out while maintaining efficient airflow and quiet operation. Supports clean, balanced air exchange for a healthier environment. QUICK WALL OR CEILING INSTALLATION – Pre-drilled holes allow simple mounting using standard screws. Designed for easy DIY setup with a firm hold on any wall, soffit, or ceiling surface. (SCREWS NOT INCLUDED) VERSATILE HOME APPLICATION – Ideal for bathrooms, kitchens, garages, or utility rooms. Works for both air intake and exhaust ventilation, improving air circulation and reducing humidity buildup. VENT SYSTEMS is a company with a long tradition and experience. We provide innovative solutions in the field of ventilation of premises. We are constantly striving to develop and deliver even better, more advanced and more efficient technologies that would enable our customers to enjoy healthy fresh air indoors. All products undergo thorough quality control. We also have a professional service and periodic maintenance system for maintaining system reliability for many years. We have created the value of the VENT SYSTEMS brand by putting particular emphasis on: QUALITY OF THE PRODUCT - WIDE RANGE OF PRODUCTS - MEETING THE CUSTOMER'S NEEDS.