Plastic jerrycans are commonly available in various sizes and colors for different purposes. A 35-liter plastic jerrycan can indeed be found in natural (transparent), blue, and milky (opaque white) colors. These colors serve different functions and are often chosen based on the contents of the jerrycan and the preferences of the user. - **Natural (Transparent)**: This allows for easy visibility of the contents inside the jerrycan. It's particularly useful when you need to monitor the level or quality of the liquid stored inside without opening the container. - **Blue**: Blue plastic jerrycans are often used for storing water or other liquids for general purposes. The color can help in identifying water containers, especially in emergency situations or outdoor activities. - **Milky (Opaque White)**: Opaque white jerrycans are often used for storing chemicals, detergents, or other substances where exposure to light might degrade the contents. The milky color helps to block out light, preserving the integrity of the contents. These colors also sometimes indicate the type of plastic used in manufacturing, which can affect factors such as durability, chemical resistance, and recyclability.