Sorbent Tube, XAD-2, 8X110, 150/75, 50/BX Back Catalog number: 811-9974-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charc Price on request 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request 800062-10 Tube Holder Housing End, 1/2" for 6mm OD (Packg of Price on request