Brimar has an amazing selection of top-quality Pipe Markers.

Card Style Medical Gas Pipe Markers conform with the NFPA 99C 2005 ''Gas & Vacuum Systems'' and CGA C9. EZ Medical Gas Markers were designed to wrap completely around pipes ranging from 3/8'' thru 2'' in diameter. Size M2 has two 4'' x 7'' markers per card. We recommend you use them on pipes from 1'' to 2'' in diameter. Size M3 has three 3'' x 3'' markers per card. Use on pipes ranging from 3/8'' thru 3/4'' in diameter. These are adhesive backed markers that you peel and stick, all markers include arrows.
Durability: 4 to 5 years Mid Continental US
Service Temp: -20 to 200° F (-29° C to 93° C)
Minimum Application Temp: 50° F
Surface Prep: Clean & Dry
Spec Compliance: NFPA 99C & CGA C-9

Roll Style Medical Gas Pipe Markers conform with the NFPA 99C 2005 ''Gas & Vacuum Systems'' and CGA C9. EZ Medical Gas Markers were designed to wrap completely around pipes ranging from 3/8'' thru 2'' in diameter. Rolls contain 100 markers at 3'' x 3'' each. These are adhesive backed markers that you peel and stick, all markers include arrows.
Durability: 4 to 5 years Mid Continental US
Service Temp: -20 to 200° F (-29° C to 93° C)
Minimum Application Temp: 50° F
Surface Prep: Clean & Dry
Spec Compliance: NFPA 99C & CGA C-9