1、High Toughness LLDPE: Made of LLDPE food grade material, this water tank meets drinking water standards and is rugged, withstanding temperatures from ‑40 to 80 degrees Celsius. 2、Seamless Design: The integrated construction ensures the RV water storage tank is leakproof and easy to transport due to its square shape. 3、Customizable: The smooth and sealed tank allows for easy modification, you can open holes at any location according to your needs to adapt to your vehicle or use. 4、Convenient Fill Up: With a 85mm wide mouth opening and double layer protection, this tank allows for quick and easy water filling, holding up to 5 gallons of drinking water. 5、Versatile Application: Suitable for a wide range of uses including RVs, trailers, outdoor vans, boats, yachts, and home water storage needs.