PVC Feeding Tubes feature soft and kink resistant medical grade PVC tubes and are available in sizes from 6Fr to 14Fr. The PVC Gatric Feeding Tubes, also known as Button G-Tubes, are used to provide nutrition to patients who cannot obtain nutrition by mouth, are unable to swallow safely, or need nutritional supplementation. ME2306 - ME2314 PVC Feeding Tubes are individually packaged and sterile, and are color coded for size identification. A cap is attached to cover the proximal end.