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Industrial Scientific 1810-6914 Equivalent Calibration Gas: 32.4% LEL Methane, 18% Oxygen, 50 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

Industrial Scientific 1810-6914 Equivalent Calibration Gas: 32.4% LEL Methane, 18% Oxygen, 50 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

$209.95
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