Draeger Carbon Dioxide Diffusion Tubes 1%/a-D
Range: .13 - 30 Vol.% x h

1 - 30 Vol% - 1 hour
0.3 - 10% Vol - 3 hour
0.2 - 6% Vol - 5 hour
0.13 - 4% Vol - 8 hour

**No Sample Pump is Required**