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This thermal expansion valve features a 3/8" x 3/8" ODF connection configuration
reducing truck stock requirements for York equipment service
Rugged Design: Built to the original engineering standards for durability in demanding residential and commercial duct environments
Versatile Replacement: Cross-compatible with Aprilaire 2200 and 2250 air cleaners using the 201 filter media
A failing or unbalanced blade can lead to excessive vibration
Resideo ZD22X10TZ Damper 321894-706 This thermal expansion valve featuresThe Resideo ZD22X10TZ is a 22" Wide X 10" High Parallel Blade Zone Damper engineered for high performance airflow management in multi zone HVAC applications. Built for technicians who demand reliability, this rectangular zone damper features a 24VAC synchronous motor that operates in a power closed spring return open configuration. The fail safe design ensures that air continues to circulate should power be lost, maintaining critical system