Tube Holder Collar Clip, for 1/2" OD, 3/8" ID Tubi Back Catalog number: 800135 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800260 Single Tube Holder Kit, 7-10 x 150mm Price on request 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request 811-9973-50 Sorbent Tube, XAD-2, 8X110, 100/50, 50/BX Price on request