Draeger Perchloroethylene Diffusion Tubes 200/a-D
Range: 25 - 1,500 ppm x h

200 - 1,500 ppm - 1 hour
100 - 750 ppm - 2 hour
50 - 380 ppm - 4 hour
25 - 200 ppm - 8 hour

**No Sample Pump is Required**