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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
notably consistent with Lennox 7021-9450 and Armstrong 40404-003 units
Reznor 96451 Rubber Isolators are the industry-standard fix
drawing only 3
Key Benefits: Leak-Free Performance: The 740A series packless design replaces standard valve packing with a spring-loaded seal
OEM Reliability: Genuine BASO Gas Products component ensures adherence to original equipment manufacturer specifications
Resideo ZD18X16TZ Damper R-448A notably consistent with Lennox 7021-9450The Resideo ZD18X16TZ is a high performance rectangular zone damper engineered for heavy duty forced air zoning. Built with a rugged extruded aluminum frame and parallel blades, this 18" x 16" unit delivers low leakage performance, ensuring precise airflow control across multiple zones. The integrated 24Vac synchronous motor is mounted on the 16" side and features a power closed spring return open configuration, providing a fail safe normally open
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