Key Benefits: OEM-Grade Protection: Factory-authorized Carrier MRA99052-9201 ensures precise calibration and a perfect mechanical fit

the 11J52R00900001 ensures internal windings remain protected against thermal degradation

High Flow Efficiency: The 1-inch orifice and 13 Cv rating support high-volume fluid transfer with minimal pressure drop

Key Benefits Verified Compatibility: Exact fit for McDonnell & Miller Series 63 and E-28 low water cut-off assemblies

Resideo ZD22X8TZ Damper R-407C Key Benefits: OEM-Grade Protection: Factory-authorizedThe Resideo ZD22X8TZ Damper is a 22" x 8" industrial grade parallel blade zone damper designed for rigorous performance in high static pressure HVACR systems. Built with an extruded aluminum frame and blades, this unit utilizes a 24Vac power closed spring return open motor configuration, ensuring a fail safe open state during power loss. The synchronous motor is side mounted on the 8" dimension, featuring Kevlar gearing and adjustable range stops to