Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX Back Catalog number: 811-9975-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800134 Tube Holder Collar Clip, for 7/16" OD, 5/16" ID Tu Price on request 800230 Triple Variable Tube Holder Kit, 6 x 70mm Price on request 200115 Tube Holder Housing, 7 x 130mm, 5/8", L247 [Draege Price on request