Tube Holder Kit, Dual Variable Manifold (Includes Back Catalog number: 800251 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 801935 Charcoal Tube, Coconut Shell, Standard, 50/100mg, Price on request 811-9971-50 Sorbent Tube, Silica (H2SO2), 6X70, 150/75, 50/BX Price on request 200104-10 Tube Holder Housing, 5 x 150mm, 1/2", S255 [Kitaga Price on request