This unique mechanical measuring gauge is designed to show the level of fluid in a 205L drum Seated in the drums venting bung hole, the gauge quickly and clearly shows the user how much fluid is left Can be used for most fluids including oil, diesel, petrol, water, coolant, ATF, waste oil and some chemicals Ensure that you never run out of that crucial fluid again making reordering quick and easy A simple and inexpensive way to stock keep, stock take and reorder fluids Reusable - transfer from drum to drum, fluid to fluid Reduce the possibility of theft with the drum clearly showing at all times how much oil or fuel etc is in the drum at any given moment The float is made from polyethylene The float has a density of ca. 0.84 so it will float on all liquids with a higher density than this Designed, engineered and manufactured in Germany