Sorbent Tube, XAD-2, 8X110, 450/225, 20/BX Back Catalog number: 811-9978-20 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800071-10 Tube Holder Housing End, 5/8", for 1/4" OD, Open E Price on request 200114-10 Tube Holder Housing, 7-10 x 175mm, 5/8", L265 (Pac Price on request 811-9972-50 Sorbent Tube, TenaX, 8X110, 100/50, 50/BX Price on request