Teledyne Gas
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Carbon Monoxide 100 ppm, Hydrogen Sulfide 25 ppm, 50% LEL Methane, 18% Oxygen Balance Nitrogen Calibration Gas, 58L
$184.00Ships directly from the manufacturer within 2-3 business days.
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Hydrogen Sulfide Calibration Gas, 25 ppm Balance Nitrogen, 34L
$134.00Ships directly from the manufacturer within 2-3 business days.