About This PRECISE DIMENSIONS – Insertable neck dimensions 15.94" x 9.25". Flange dimensions: 17.91" x 10.04". Opening dimensions: 15.94" x 8.07". DURABLE ALUMINUM BUILD – The vent cover is made of high-quality aluminum sheet without any welds, offering a modern appearance and long-lasting performance. The grille can be used without any anti-corrosion protection and its RAL 9016 powder-coated finish adds durability. ADJUSTABLE LOUVER BLADES – Integrated louvers allow manual airflow control, directing warm or cool air as needed. Improves comfort and efficiency in HVAC heating, cooling, and ventilation systems. EASY INSTALLATION – Supplied with built-in mounting clips for quick and secure setup. Soft edges ensure a safe handling experience and help achieve a tight, stable fit without extra tools or fasteners. WIDE APPLICATION – Works as a supply vent, return air grille, or exhaust grille. Ideal for home improvement, bathroom, living room, office, basement, or renovation projects. Compatible with most HVAC duct systems.