45 Gallon RV Water Tank 34 1/2" x 19 3/4" x 15 3/4" The rectangular box shape of the RecPro 45-Gallon Water Tank simplifies installation when you’re ready to replace the tank that shipped with your recreational vehicle. It will fit perfectly into the vehicle, matching the dimensions of the original tank. Often, original manufacturer tanks are made of cheap plastic, causing them to wear down. But with our high-quality water tanks, you’ll receive a sturdy plastic that can withstand any rough roads you encounter with your RV. Our manufacturers use a spin welding technique to create a single piece tank, which allows it to avoid leaks, even under stressful situations. Our 45-gallon tank measures 34 1/2” x 19 3/4” x 15 3/4”. The tank has a 1-inch vent tube in the center to simplify filling. Our water tank will keep your water safe to drink and use, even during long camping trips. With this tank’s capacity, you’ll have water for 480 glasses of 12 ounces each, ensuring you have enough water on hand for long trips. Whether you’re looking for a backup tank for your recreational vehicle or you need to replace the current tank, you can count on our products.