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 111U Isopropyl & Ethyl Acetate (10-1000 ppm) Gas detector tubes, pk/10 Price on request 800075 Tube Holder Quad Variable Flow, only Price on request 143SA Xylene (5-1000 ppm) Gas detector tubes, pk/10 Price on request