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 811-9965-50 Sorbent Tube, Silica Gel, 6X70, 150/75, 50/BX Price on request 800681-1 Tube Breaker Kit, Black, LFS-113 Price on request 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request