Sulphur Dioxide 1-60 ppm Gas Detector Tube, pk/10 Back Catalog number: 103SD Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800138 Tube Holder Adapter for 5/8" Ends Price on request 800262 Single Tube Holder Kit, 7 x 130mm [Draeger Long Term Tubes] Price on request 200102-10 Tube Holder Housing, 6x70mm, 1/2" OD, S225 (pkg of 10) Price on request