Tube Holder Housing, 5 x 150mm, 1/2", S255 [Kitaga Back Catalog number: 200104 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9985-50 Sorbent Tube, Florisil, 6X70, 100/50, 50/BX Price on request 800139 Tube Holder Adapter for 1/2" Ends Price on request 811-9971-50 Sorbent Tube, Silica (H2SO2), 6X70, 150/75, 50/BX Price on request