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 800170-10 Tube Holder Hose Barb Fitting (Packg of 10) Price on request 800134 Tube Holder Collar Clip, for 7/16" OD, 5/16" ID Tu Price on request 800238 Tube Holder O-Ring Kit Price on request