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 143SA Xylene (5-1000 ppm) Gas detector tubes, pk/10 Price on request 800170 Tube Holder Hose Barb Fitting Price on request 800263 Single Tube Holder Kit, 5 x 150mm [Kitagawa TWA Tubes] Price on request