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 200486 Tube Holder Tubing, 1/4" ID x 1/16" W (10 ft) Price on request 200112 Tube Holder Housing, 7-10 x 150mm, 5/8", L255 Price on request 800074 Tube Holder Triple Variable Flow, only Price on request