Sorbent Tube, Silica Gel, 6X70, 150/75, 50/BX Back Catalog number: 811-9965-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9968-50 Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Price on request 800136-10 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubi Price on request 811-9969-20 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 20/BX Price on request