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 811-9967-50 Sorbent Tube, Silica Gel, 8X110, 300/150, 50/BX Price on request 800064 Tube Holder Housing End, 5/8", for 7-10mm Price on request 800066-10 Tube Holder Collar Clip, for 1/4" OD, 1/8" ID Tubi Price on request