AprilAire 6506 Round Ventilation Damper

AprilAire’s 6506 round ventilation damper is designed to help balance air intake and exhaust in hydronic and forced-air systems. Its compact round form supports versatile installation in ducts and plenums, making it a popular choice for retrofit projects and new builds alike.

Key specifications
The 6506 features a round duct connection, a durable damper blade, and a low-leak design intended to minimize backflow. Typical materials include corrosion-resistant components suitable for frequent cycling. Check product sheets for exact diameter, blade material, and actuation options compatible with your system.

Technical specs such as maximum static pressure, expected airflow range, and installation clearances will influence selection. Always verify with the current manufacturer documentation or an HVAC professional to ensure compatibility with your ductwork and zoning strategy.