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The Goodman B1789868 flowrator (piston) is installed in the evaporator coil when the coil has a different tonnage rating than the condenser tonnage rating. This piston kit ensures your system functions optimally. It replaces worn or nonfunctioning pumps, valves, and tubing in HVACR equipment. The piston has a 0.068 in orifice.
The Goodman B1789868 flowrator piston kit optimizes HVACR systems by ensuring proper refrigerant flow between mismatched evaporator and condenser coils.
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