These IIAR-compliant pipe markers come with the traditional yellow background and are recommended for use in labeling ammonia piping and its contents.

• IIAR pipe markers should include: the marker body (AMMONIA), physical state, pressure level, directional arrows, and an ammonia piping abbreviation
• Style I wrap-around pipe markers fit pipes with outside diameter of 1-1/2 in. to 2-3/8 in.
• B-689 coiled pipemarkers are designed for marking rusty, dirty, wet or rough pipes where pressure sensitive labels cannot be used
• Pipe marker includes directional arrows