The Brady Pipe Marker for Compressed Air is a self-adhesive vinyl pipe marker that identifies compressed air pipes. It has a blue background with the words "Compressed Air" in white text, and comes in sizes ranging from 1" to 4" width and 4" to 40" length. The vinyl material is UV, chemical, oil, and scratch resistant for long lasting identification. It meets ANSI/OSHA requirements for pipe marking and has an operating temperature range of -40°F to 176°F. This versatile marker works on metal, plastic, painted, and insulated pipes.