PRECISE DIMENSIONS: Suitable for vent holes equal to or smaller than 3.15" x 3.15" inches. Outside dimensions are 3.93" x 3.93" inches. Grille thickness is 0.24" inches. Pre-drilled hole diameter is 0.16". Screws are NOT included. DURABLE AND QUALITY MATERIAL: Made of quality metal - galvanized steel and is rust free. Fits perfectly with other Vent Systems HVAC products. Paintable metal components contain UV stabiliser to reduce fading due to exposure to sunlight. LOUVER AIR VENT DESIGN: Louvered design for better look and better air flow. Helps to keep rain and snow from entering outdoor dryer vents, ventilation pipes. Comes with a built-in durable insect screen mesh. EASY INSTALLATION: Usable for both - indoor and outdoor use. Easy to install fresh air vent cap - grill cover. No screws included. For supply and exhaust, heating and cooling ventilation. SOFFIT VENTS FOR HOME IMPROVEMENT: Vent Systems products are made to be used for house improvement, office improvement. They are portable, crafted with great workmanship, and built to last. The louvered vent is ideal as a kitchen, bathroom, shed, mobile home or garage vent. Suitable as a ac vent cover, home hvac vent or heating vent. 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.