The 7245-3C is a self-adhesive pipe marker designed to identify pipes containing "RET. ACTIVATED SLUDGE". Constructed from durable, high-gloss B-946 vinyl, it measures 2.25 by 2.75 inches and is suitable for pipes with an outer diameter of 0.75 inches or smaller. It features a permanent, cold-temperature acrylic adhesive for easy installation and offers good resistance to chemicals, oil, and water. The marker operates effectively in a service temperature range of -40°F to 180°F and has black text on a yellow background for high visibility. This makes it ideal for clear and durable pipe and valve marking in various indoor and outdoor industrial environments.