Home improvement - For Intake or extraction use, for outside or inside, for walls or ceilings, great for garages, sheds, offices, bathroom, RVs or campers, and anywhere else air is desired to travel through Premium material: Louvre air vents are made of new high quality ABS plastic, environment friendly and non-toxic. Built-in fly screen mesh. Easy Installation - available for wall mounting or ceiling mounting. May be conneted to dryer vent or any other VENT SYSTEMS HVAC part Diameter for 6" Inch Opening - Outer diameter is 7" - Ideal for room exhaust and intake ventilation use. Great and beautiful design. Reduce dust into kitchen or bathroom by fly screen mesh. 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 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.