The Grainger website features liquid level gauges for drums and tanks. These gauges allow you to visually check liquid levels in your containers. They are available in galvanized steel and HDPE materials with rod/float designs. Key features include corrosion resistance, chemical compatibility, and easy installation by threading into your container's bunghole. They provide at-a-glance monitoring to ensure you don't overfill or run dry. With proper use they can help improve safety and efficiency when managing liquids in drums or tanks.