Potable Water Cooler Tape is a green seal that denotes safe drinking water for consumption and discourages workers from tampering with the water cooler. This tape is safe to use as it leaves no sticky residue that would attract unwanted contaminants. In addition, these rolls can be designated for authorized use only in order to help prevent mislabeling. One roll measures 2"W x 55 yards long which is the equivalent of 38 ten-gallon water coolers.