Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubing Back Catalog number: 800136 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9977-20 Sorbent Tube, XAD-2, 6X110, 120/60, 20/BX Price on request 124SA Sensidyne Gas Detector Tubes, Toluene (10-500 ppm), pk/10 Price on request 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request