2.1/2" Disks: Inside Diameter 3 1/4" and Outside Diameter 7 7/8"
Made of durable high-density polyethylene (HDPE) and prismatic reflective vinyl that are unaffected by abusive treatment or severe temperature changes.
The hydrant ID disks are made to identify hydrants in accordance with NFPA Classifications.
Our hydrant flow ID disks provide an inexpensive, long lasting and effective way to identify your hydrants. Just remove the cap, slide on the disk and replace the cap.