2 1/8" Service Verification Collars 50 PK

As required by the 1998 edition of NFPA 10. Made of durable polymer material.

These collars are available in four different sizes. Each is a different color for ease of identification. Two smallest sizes (1 3/8" and 1 3/4") have two years molded, the larger sizes (2 1/8" and 3 1/16") have four.