ASME A13.1 Pipe Markers | McMaster-Carr

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About Selecting Pipe Markers

Adhesive-Back Pipe Markers

Apply directly onto clean, dry pipes for clear identification of contents.

Snap-On Pipe Markers

Label greasy and oily pipes where adhesive won’t hold—these markers coil around your pipe.

Washdown Pipe Markers

These fade-resistant pipe markers withstand detergents used in high-pressure cleaning.

Reflective Pipe Markers

Identify pipe contents in low-light conditions.

Flow Arrow Pipe Marker Tape

Secure peeling edges of adhesive pipe markers. Printed arrows on the tape's surface indicate the flow direction of your pipe's contents.