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 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charc Price on request 800170 Tube Holder Hose Barb Fitting Price on request 800260 Single Tube Holder Kit, 7-10 x 150mm Price on request