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 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of Price on request 200102 Tube Holder Housing, 6x70mm, 1/2" OD, S225 Price on request 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charc Price on request