Sensidyne Precision Colorimetric Gas Detector Tube with a C2H2; 20-300 ppm; C2H4; 200-2,000 ppm Range for Measuring and Detecting Acetylene And Ethylene. Box Of 2X5 Tubes for use with Sensidyne AP-20S Detector Tube Pump.
Special-order item: Lead time is typically 5-6 weeks.