1Durable Construction: The water tank is made of lldpe material, and has the characteristics of shaking and stamping resistance, high tenacity, heat and cold resistance, and can be used in the environment of 40 to 80 degrees Celsius. 2Perfect Sealing: The whole water holding tank has no welding gap to ensure the sealed performance, not easy to break, water leakage prevention, square design for easy storage and easy handling. 3Easy Installation: The water holding tank has simple and hassle free installation, can be installed at any location according to your needs to adapt to your RV. 4Large Capacity: The 100mm large diameter water inlet is equipped with a sealed cover of the outer cover, easier and faster to fill the water, and can store 5 gallons of drinking water at a time. 5Versatile Application: Suitable for RV, trailer, outdoor camper, boat, yacht fresh water storage, but also household water storage, convenient and practical for daily use.