?? Genuine Brand New Sub-Zero Heater Drain Tube Compatible Refrigerator Models: 532, 542, 561, 590, 601F, 632, 642, 680, 690, 601F-2, 632-2, 642-2, 700TFI, 700TCI, 700BF/I-2, 700BC/I-3, 700BF/I-3 ? Model and Serial Number Compatibility 500 Series ? Use regardless of serial number 601F ? Use regardless of serial number 632 ? Use regardless of serial number 642 ? Use regardless of serial number 680 ? Use prior to serial #1810000 690 ? Use prior to serial #1810000 601F-2 ? Use regardless of serial number 632-2 ? Use regardless of serial number 642-2 ? Use regardless of serial number 700TCI ? Use from #M1112040 to #1644230 700TFI ? Use from #M1112040 to #1648880 700BF/I-2 ? Use regardless of serial number 700BC/I-3 ? Use regardless of serial number 700BF/I-3 ? Use regardless of serial number ?? Please confirm your exact model and serial number prior to purchase to ensure compatibility. ? Product Description This listing is for a genuine OEM Sub-Zero Heater Drain Tube, designed to maintain your refrigerator?s proper drainage system. A properly functioning drain tube is essential for preventing blockages, water buildup, and frost issues. Replacing your old or damaged tube with a genuine Sub-Zero part helps: Ensure proper drainage performance Prevent leaks or clogs that can cause costly damage Keep your refrigerator operating at factory efficiency ?? Important Buyer Information This is a brand-new OEM Sub-Zero replacement part ? never aftermarket. Please verify your refrigerator?s model and serial number before purchase. Orders placed without correct compatibility may result in delays or cancellations. ? Shipping Please allow up to 3 business days for processing and shipping. All parts are carefully packaged to ensure safe delivery.