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The Allied Air R44478-001 Expansion Valve, MPN 78L19, is designed for HVAC systems. It efficiently regulates refrigerant flow to ensure optimal performance of air conditioning systems.
This expansion valve helps maintain system efficiency by controlling refrigerant flow with precision.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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