Gas Sampling Pump, Gas Detected Chemical Substances, Product Type Detection Tube Pump Kit, Power Source Manual/Non-Powered, Includes (3) Rubber Inlets, Lubricant, Features Adjustable Sampling Volume, Calibrated Scale Directly Printed On The Tube, Each Detector Tube Has Its Own Quality Control Number Printed On The Tube, Long Shelf-Life, On-Site Measurements, Housing Material Plastic, Overall Length 10 in, Series GV-100.