Bullard CABCK Calibration Kit (Includes Zero Air C34L Cylinders, 10 ppm CO, Regulators, Tubing And Connector)

Bullard Calibration Kit is used to monitor Co content for clean air box. Calibration kit includes carrying case, 34L cylinder zero and CO gas. It offers superior breathing air filtration in a durable easy to use format. It provides 3-stages of filtration and carbon monoxide monitoring. It is OSHA approved.