PVC Stomach Tubes are designed for nutrition supplement to stomach and is available in sizes from 6Fr to 18Fr. The PVC gastric tubes are used in facilitating gastric intubation for patients who cannot take food or swallow. These single lumen tubes feature graduated measurement indicators for proper depth insertion and color coded connecters for fast size identification. ME2206 - ME2218 Gastrostomy Tubes(G-Tubes) are made of biocompatible PVC plastic.