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The GOODMAN B1789876 Flow Check Piston with a 0.076 inch orifice is an OEM repair part for Goodman-Amana HVAC equipment. This piston kit is designed for use with model GSX130421 condensing units and other compatible models. It ensures proper flow check functionality within the HVAC system.
The Goodman B1789876 piston kit is essential for maintaining the performance of your Goodman HVAC system.
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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