Carbon Monoxide 1-50 ppm Gas Detector Tube, pk/10 Back Catalog number: 106SC Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200104 Tube Holder Housing, 5 x 150mm, 1/2", S255 Price on request 800136 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubing Price on request 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request