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 811-9969-20 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 20/BX Price on request 800259 Single Tube Holder Kit, 7-10 x 110mm Price on request 800232 Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Price on request