The ZD18X20TZ is a 24V automatic rectangular damper measuring 18x20 inches, designed for efficient airflow control in HVAC systems. This damper features a durable construction that ensures long-lasting performance and reliability. It operates automatically, allowing for precise control of air distribution, enhancing system efficiency. The damper is compatible with various HVAC applications and meets industry standards for safety and performance. Its compact design allows for easy installation in tight spaces, making it a versatile choice for both residential and commercial systems.