Non-Potable Water Pipe Marker by National Marker Company is specifically designed and manufactured to indicate specific pipe content. The wrap-around pipe marker has a clear legend “Non-Potable Water” written in bold letters that helps to indicate the content of pipe. The pipe marker is manufactured using premium grade material that withstands extreme conditions without fading. The pipe marker is commonly used at flammable storage cabinet, fire stations, or chemical laboratories. The sign muscle on the pipe marker helps to keep the marker safe from scratches or fading too soon.