FITS STANDARD 11" x 4" OPENINGS – Compatible with wall or ceiling cutouts up to 10.63" x 4.33". Ensures precise, secure fit and consistent airflow for both residential and commercial HVAC return or exhaust systems. STRONG METAL CONSTRUCTION – Made from black painted metal that resists corrosion, moisture, and UV exposure. Built to handle temperature fluctuations and long-term indoor or outdoor use without fading or warping. BUILT-IN MESH PROTECTION – Fine integrated metal mesh helps block dust and debris while maintaining smooth airflow and ventilation efficiency, supporting a cleaner and healthier air environment. EASY WALL OR CEILING MOUNT – Pre-drilled holes allow for fast, secure installation using standard screws. Can be mounted horizontally or vertically depending on HVAC layout. (SCREWS NOT INCLUDED) MULTI-PURPOSE USE – Ideal for bathrooms, kitchens, garages, or utility rooms. Suitable for both air intake and exhaust, ensuring proper ventilation, reduced humidity, and improved indoor air quality. 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.