Sorbent Tube, XAD-7, 6X110, 100/50, 50/BX Back Catalog number: 811-9979-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800230 Triple Variable Tube Holder Kit, 6 x 70mm Price on request 811-9969-20 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 20/BX Price on request 800064 Tube Holder Housing End, 5/8", for 7-10mm Price on request