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

Specially formulated desiccant blend prevents chemical breakdown of refrigeration oil

High Reliability: Designed for high-cycle life in residential

professional-grade intermittent pilot ignition setup

low-friction solution for vertical or horizontal mounting configurations

Resideo ZD16X12TZ Damper 340155-7026 this part number includes bothThe 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