Half Moon Lay Down Water Caddy allows you to take 48 Gallons of fresh water with you on your next road trip and is an easy way to haul water in your pick-up bed or trailer. Conveniently fits on either side of gooseneck hitches. We manufacture it with FDA approved Polyethelene so the water is safe for you and your animals to drink. Transulcent poly allows you to see easily check water levels in the tank. Fill cap is located on the top of the tank. Molded in aluminum 3/4" drain inserts ensure the drain attachment spot will never break, sunrot or fail. 3/4" shut off valve included.