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 800254 Single Variable Flow Kit, 5 x 150mm [Kitagawa TWA Price on request 811-9989-20 Sorbent Tube, Beaded Carbon, 6X70, 140/70, 20/BX Price on request 800139 Tube Holder Adapter for 1/2" Ends Price on request