Sorbent Tube, Silica Gel, 6X70, 100/50, 50/BX Back Catalog number: 811-9966-50 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 800260 Single Tube Holder Kit, 7-10 x 150mm Price on request 800249 Tube Holder Kit, Quad Variable (Includes 6x70mm, 7 Price on request