The Water Oil Level Flexible Tape (WOLFTape) from L&M Associates Engineering Rep. Inc. helps utilities make a quick determination of the volume of dielectric fluid in a containment vault.

The tape features an orange-colored layer that becomes fluorescent yellow when coming in contact with water. WOLFTape absorbs the dielectric fluid and becomes dark orange in color to indicate the depth of the water as well as the dielectric fluid. WOLFTape is marked in 1-inch and 6-inch increments so it is easy to determine the depth of the fluid. A chart is included in each individual sealed package with conversion charts to gallons for various sized vaults.