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 800149 Single Tube Holder Kit, 6 x 70mm (Standard Charcoa Price on request 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request 800254 Single Variable Flow Kit, 5 x 150mm [Kitagawa TWA Price on request