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Industrial Scientific 1810-2343 Calibration Gas: 25% LEL Pentane, 20.9% Oxygen, 200 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

Industrial Scientific 1810-2343 Calibration Gas: 25% LEL Pentane, 20.9% Oxygen, 200 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

$199.95
Industrial Scientific 1810-5825 Bump Test Gas: 25% LEL Methane, 15% Oxygen, 200 ppm Carbon Monoxide, 75 ppm Hydrogen Sulfide, Balance Nitrogen

Industrial Scientific 1810-5825 Bump Test Gas: 25% LEL Methane, 15% Oxygen, 200 ppm Carbon Monoxide, 75 ppm Hydrogen Sulfide, Balance Nitrogen

$59.95
Industrial Scientific 1810-9181 Calibration Gas: 25% LEL Pentane, 18% Oxygen, 200 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

Industrial Scientific 1810-9181 Calibration Gas: 25% LEL Pentane, 18% Oxygen, 200 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

$199.95
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