Triple Variable Tube Holder Kit, 6 x 70mm Back Catalog number: 800230 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200102-10 Tube Holder Housing, 6x70mm, 1/2" OD, S225 (Packg Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request 811-9975-50 Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX Price on request