- Made Of High Quality FDA Grade PP Polymer. - Non - Dust Adhesive. - Prevents Bacteria from growing. - No Water Leakage - To Fit 4 or 5 Gallon Bottle. - Easy to Install without Using Tool - Safety-- Food-grade high quality material, anti bacteria, safe and more secure of using it. Removable Tap, easy cleaning and healthy water drinking. - energy saving--No need of electricity, environmentally friendly and energy saving