Dial Gauge Level IndicatorAlways know how much water is in your tank with this easy to read, mechanical tank gauge ideal for small rainwater tanks and close up viewing. The Dial Gauge Level Indicator mounts directly to the top of your tank and uses a reliable float system to display the current water level at a glance. The clear dial face shows you exactly how full your tank is, helping you make smarter decisions about when to use or conserve water. Key Features: Seals