{"product_id":"oem-goodman-piston-flowrator-kit-for-gsc130481ac-condenser-b1789882-1","title":"OEM Goodman Piston \/ Flowrator Kit for GSC130481AC Condenser — B1789882","description":"\u003ch2\u003eGoodman B1789882 Piston Kit\u003c\/h2\u003e\u003cp\u003eThe B1789882 is a genuine OEM piston (flowrator) kit for the Goodman \u003cstrong\u003eGSC130481AC\u003c\/strong\u003e 13 SEER, 4-ton split-system condenser. The piston is the refrigerant metering device that sets the precise orifice size controlling refrigerant flow into the evaporator coil. Correct piston sizing is essential to proper superheat, capacity, and efficiency — an incorrect orifice causes poor cooling, icing, or compressor strain. This kit ensures you install the exact factory-specified orifice.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Piston \/ flowrator refrigerant metering device\u003c\/li\u003e\n\u003cli\u003eFunction: Fixed-orifice refrigerant flow control\u003c\/li\u003e\n\u003cli\u003eApplication: Condenser \/ evaporator refrigerant circuit\u003c\/li\u003e\n\u003cli\u003eFitment: Goodman GSC130481AC and compatible 4-ton systems\u003c\/li\u003e\n\u003cli\u003eOEM Part #: B1789882\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePiston orifices are sized in thousandths of an inch and matched to a specific tonnage and coil. The genuine Goodman B1789882 guarantees the correct bore for the GSC130481AC — generic pistons with the wrong orifice number will degrade capacity and efficiency or trigger nuisance faults. For a metering component, OEM accuracy is non-negotiable.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHard.\u003c\/strong\u003e Requires opening the sealed refrigerant circuit — recovery, evacuation, and recharge by an EPA 608-certified technician. Professional installation only.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057194647923,"sku":"GOODMAN-719","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-piston-flowrator-kit-for-gsc130481ac-condenser-b1789882-1","provider":"National HVAC Parts","version":"1.0","type":"link"}