The Grainger Pipe Marker for Instrument Air is a self-adhesive vinyl label designed for identifying instrument air pipes. It features the words "Instrument Air" printed in black on a yellow background. The marker measures 4 inches wide by 12 inches long and has an aggressive adhesive that adheres well to PVC, steel, and other common pipe materials. This durable marker resists UV rays, abrasion, chemicals, and moisture. It meets ANSI/OSHA standards for pipe marking and identification. The Grainger pipe marker provides an easy and organized way to label instrument air pipes for improved facility safety.