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 800262 Single Tube Holder Kit, 7 x 130mm [Draeger Long T Price on request 800064-10 Tube Holder Housing End, 5/8", for 7-10mm (Packg o Price on request 800170 Tube Holder Hose Barb Fitting Price on request