HVAC OV 13" x 3" Aluminum Supply/Exhaust Grille for a Round Spiral Duct - Heavy Duty Grill Cover with Adjustable Louver Blades - HVAC Air Return Ventilation Register for Home, Office, Bathroom — Open-Box, 19% Off

SIZE & COMPATIBILITY – Designed for round spiral ducts or smooth surface round ducts. Insertable neck dimeinsions 12.80" x 2.17" with outer dimensions of 13.58" x 4.10". Compatible with spiral duct diameters ranging from 6.30" to 15.74" (160–400 mm), ensuring a tight and professional fit.

MATERIAL & DURABILITY – Made of galvanized steel sheet with no welded joints, providing long-term resistance to rust, moisture, and heat. Foam edge padding ensures vibration damping and a sealed connection to the duct surface. Built to last even under continuous HVAC operation. Made in EU.

FUNCTIONALITY & UNIQUE FEATURES – Features adjustable louver blades for precise airflow control — easily regulate air direction and volume by rotating the grille. Includes a protective steel mesh that prevents debris entry while maintaining strong airflow. The curved frame structure ensures flush contact with round ducts.

INSTALLATION & USE – Designed for direct spiral duct mounting using the included screws. The integrated ventilation flange guarantees a tight seal and quick setup. No special tools required — the grille can be easily adjusted or removed for maintenance and cleaning.

APPLICATION & CUSTOMER BENEFIT – Perfect for HVAC systems, industrial ventilation, and residential ducting in homes, offices, and workshops. Suitable for both air supply and exhaust ventilation, offering noise reduction, airflow precision, and a modern, durable finish for exposed duct installations.

HVAC OV works with manufacturers, markets and distributes products and system solutions for simplified construction and improved indoor climate. // The products are characterised by their quality, ease of assembly and consideration towards the environment. // We simplify construction // At HVAC OV, we simplify construction because it is in human nature to build. By simplifying in every stage, we make it easier to install seamlessly. We develop products with people in mind. We offer solutions that meet the demands for comfort, simplicity and aesthetics. // We are driven by a strong passion and desire to continuously offer improvements. // Partly for all the customers and partners who use our products and solutions, but also for the people who live and work in buildings that use our products. We simplify construction and help to create a healthy indoor climate. // Ideal for all tumble dryer vent pipes, hoses, bathroom extractors & vents, air conditioning and heating units, kitchen vents & fans, all home wall and ceiling vents, heat transfer and ventilation systems, gas & electric dryers, cooker hood extractors, as well as a wide variety of industrial uses. grill vent, ventilation system.