Sorbent Tube, XAD-2, 6X110, 120/60, 20/BX Back Catalog number: 811-9977-20 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200102 Tube Holder Housing, 6x70mm, 1/2" OD, S225 Price on request 800075 Tube Holder Quad Variable Flow, only Price on request 200115 Tube Holder Housing, 7 x 130mm, 5/8", L247 [Draege Price on request