Compressed Air Precoiled Pipe Marker by National Marker Company is specifically designed and manufactured to indicate specific pipe content along with the direction of flow. The wrap-around pipe marker has a clear legend ?Compressed Air? written in bold letters and a simple Arrow graphic sign that helps to indicate the content of pipe. The pipe marker is manufactured using premium grade material that withstands extreme conditions without fading. The precoiled pipe marker is commonly used at flammable storage cabinet, fire stations, or chemical laboratories.