Tube Holder Collar Clip, for 7/16" OD, 5/16" ID Tu Back Catalog number: 800134 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request 811-9962-50 Sorbent Tube, Chromosorb-102, 8X110, 100/50, 50/BX Price on request 800170 Tube Holder Hose Barb Fitting Price on request