The AT-A-GLANCE liquid level gauges are designed for use with drums and tanks to indicate liquid level at a glance. They feature a clear polycarbonate body with bold, easy-to-read level markings and a heavy duty polypropylene float. The gauges have 3/4" NPT threads and are available in 6", 12", 18", 24", and 36" lengths to accommodate different tank depths. They can handle temperatures up to 150°F and pressures up to 100 PSI. The gauges provide an economical way to monitor liquid levels in drums, tanks, and totes.