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 811-9969-20 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 20/BX Price on request 800136 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubi Price on request 800064-10 Tube Holder Housing End, 5/8", for 7-10mm (Packg o Price on request