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Direct OEM Fit: Specifically tailored for Armstrong "M" style bearing assemblies
This switch is calibrated to exact manufacturer specifications to detect combustion air pressure drops
or internal housing failure that leads to rattling and decreased CFM output
simplifying the York condenser fan motor replacement process
Common Technical Questions What is the correct capacitor rating for the Lennox 25W16
Reznor 43258 Restrictor 328140-751 Direct OEM Fit: Specifically tailoredThe Reznor 43258 Restrictor, specifically identified as the VNTR RESTRICTOR RPV225 5, is a precision engineered combustion air component designed for integration with high efficiency Reznor gas fired unit heaters. This OEM replacement part is critical for maintaining the correct stoichiometry within the combustion chamber, ensuring that gas to air ratios remain within factory specifications for the RPV225 series. Technicians often source this venturi
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