Feature: 1. HIGH DURABILITY: RV water tank made of LLDPE material, resistant to shock, pressure, cold and heat, and can be used in the environment of ‑40‑80 degrees Celsius. 2. LEAK PROOF DESIGN: One piece molded construction without welding seams, with square shape for easy storage and transportation, ensures tank's sealing and prevents leakage. 3. CUSTOMIZABLE USE: Smooth and sealed surface allows for easy modification to fit your vehicle or use, giving you reliable and simple applications. 4. LARGE CAPACITY: Equipped with a 130mm diameter water inlet with a sealed lid, it allows for easy and swift water filling, storing up to 21 gallons of water for daily use. 5. VERSATILE APPLICATION: This fresh water holding tank is suitable for RVs, trailers, outdoor camping vehicles, boats, yachts for fresh water storage, ideal for outdoor enthusiasts. Specification: Item Type: RV Water Storage TankMaterial: LLDPEWater Tank Capacity: 21 Gallons Water Tank Size: Approx. 515x300x520mm/20.27x11.81x20.47in Usage: Used for drinking water, daily water storage and transportationApplication: For Rvs, Trailers, Outdoor Campers, Ships, Yachts. Package List: 1 x Water Storage Tank Note: Please confirm the size you need before purchase.