1Durable Material: Crafted from LLDPE material, this tank meets food grade requirements, has excellent shock resistance, pressure resistance, flexibility, and thermal resistance. 2Sturdy Structure: With seamless one piece molding, this holding tank has no welding gap, ensuring the tank's sealabilit, leak proof and its square design makes it easy to store and transport. 3Customizable Design: Featuring a smooth and neat overall shape, this water tank can be modified according to your specific needs, making it adaptable for your vehicle or usage. 4Large Water Inlet: Equipped with a 130mm diameter water inlet with a sealed lid, it allows for easy and swift water filling, storing up to 15 gallons (approximately 58L) of water for everyday use. 5Wide Applications: This fresh water holding tank is suitable for RVs, trailers, outdoor camping vehicles, boats, yachts for fresh water storage.