The 0.75-inch letters on this blue pipe label will clearly identify your air pipes or lines. Label colors conform to ASME A13.1 standards. This self-adhesive pipe marking sticker includes permanent acrylic adhesive with easy-to-remove backing - just peel and stick. It includes a clear laminate coating that is UV, chemical, abrasion and moisture resistant. The label is printed with UV-stable ink and suitable for indoor or outdoor use at temperatures from -40 to +176 F. Label text is: COMPRESSED AIR (White legend on Blue background). ComplianceSigns.comlabels are made in the USA and commonly used in industrial, commercial, public and private settings.