- Used to calibrate the carbon monoxide (CO) monitors in the 3M™ Portable Compressed Air Filter and Regulator Panel 256-02-00, 256-02-01 and 3M™ Retrofit CO Monitor Kit W-2808.
Used to calibrate the carbon monoxide (CO) monitors in the 3M™ Portable Compressed Air Filter and Regulator Panel 256-02-00, 256-02-01 and 3M™ Retrofit CO Monitor Kit W-2808.

3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915 
