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 800136-10 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubi Price on request 800260 Single Tube Holder Kit, 7-10 x 150mm Price on request 800064-10 Tube Holder Housing End, 5/8", for 7-10mm (Packg o Price on request