Tube Holder Single Variable Flow, only Back Catalog number: 800072 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200113 Tube Holder Housing, 7-10 x 110mm, 5/8", L240 Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request 811-9962-50 Sorbent Tube, Chromosorb-102, 8X110, 100/50, 50/BX Price on request