Tube Holder Housing End, 5/8", for 7-10mm Back Catalog number: 800064 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800139 Tube Holder Adapter for 1/2" Ends Price on request 811-9968-50 Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Price on request 800149 Single Tube Holder Kit, 6 x 70mm (Standard Charcoa Price on request