High Reliability: Designed for high-cycle life in residential

this part number includes both the high-grade steel bearing and the cast iron 2-bolt flange housing

this is specifically a high pressure switch that opens on pressure rise

Key Benefits Ensures unobstructed airflow while preventing insects

and extending up to 400 series units depending on the specific assembly configuration

Resideo ZD16X12TZ Damper 340155-7026 High Reliability: Designed for high-cycleThe Resideo ZD16X12TZ Damper is a professional grade, 24Vac powered HVAC zone damper specifically engineered for high performance residential and light commercial zoning systems. As a veteran preferred rectangular zone damper, it features parallel blade action and a power closed spring return open fail safe configuration, making it the ideal choice for zones requiring a normally open default state. This 16" x 12" unit is built with a heavy duty