Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Back Catalog number: 811-9968-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200187 Tube Holder Adapter, 3/16" to 1/4" Ends Price on request 200102-10 Tube Holder Housing, 6x70mm, 1/2" OD, S225 (Packg Price on request 811-9976-20 Sorbent Tube, XAD-2, 6X110, 150/75, 20/BX Price on request