Carbon Monoxide 1-50 ppm Gas Detector Tube, pk/10

Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubi

Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX

Sorbent Tube, XAD-7, 6X110, 100/50, 50/BX