Tube Holder Collar Clip, for 1/4" OD, 1/8" ID Tubi Back Catalog number: 800066 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9969-100 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 100/BX Price on request 800071 Tube Holder Housing End, 5/8", for 1/4" OD, Open E Price on request 800062 Tube Holder Housing End, 1/2" for 6mm OD Price on request