Hydrogen (H2) 500 ppm (Balance Air) 34L CGA 600 Steel Cylinder$60.00 Single Component Calibration Gas Shelf Life 36 months Call us for a quote Product Model: 34-19-0500 Hydrogen (H2) 500 ppm (Balance Air) 34L CGA 600 Steel Cylinder quantity Add to cart SKU: 34-19-0500 Category: Calibration Gases Tag: Calibration Gases Description Description Single Component Calibration Gas Shelf Life 36 months Related products Nitrogen Dioxide (NO2) 25 ppm (Balance Nitrogen) 34L CGA C10 Aluminum Cylinder0 out of 5 $270.00 Add to cart Regulator 110-11PO.25 (.25 liters per minute fixed flow rate)0 out of 5 Read more Nitrogen Dioxide (NO2) 5 ppm (Balance Air) 58L CGA C10 Aluminum Cylinder0 out of 5 $345.00 Add to cart