Triple Variable Tube Holder Kit, 6 x 70mm Back Catalog number: 800230 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800138 Tube Holder Adapter for 5/8" Ends Price on request 400253 Tube Holder, Clear Storage Box Price on request 811-9971-50 Sorbent Tube, Silica (H2SO2), 6X70, 150/75, 50/BX Price on request