The following Water tanks are made of a tough polyethylene and are in use by many of the most popular coaches on the market. All water tanks are blank (no fittings or holes. If you don't see the model you need, give our customer service department a call and we'll help you find it! All water tanks are NON-Stock and NON-Returnable. Lead time is approximately 2 - 3 week plus shipping. SHIPPING AND HANDLING RATES ARE AN APPROXIMATION ONLY AND MAY VARY.