Triple Variable Tube Holder Kit, 6 x 70mm Back Catalog number: 800230 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200115-10 Tube Holder Housing, 7 x 130mm, 5/8", L247 [Draege Price on request 811-9962-50 Sorbent Tube, Chromosorb-102, 8X110, 100/50, 50/BX Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request