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RKI Instruments 81-0155RK-04 Calibration Gas: 15% LEL Hexane, 12% Oxygen, 50 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

RKI Instruments 81-0155RK-04 Calibration Gas: 15% LEL Hexane, 12% Oxygen, 50 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

$169.95
RKI Instruments 81-0156RK-02 Calibration Gas: 32% LEL Pentane, 14% Oxygen, 50 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

RKI Instruments 81-0156RK-02 Calibration Gas: 32% LEL Pentane, 14% Oxygen, 50 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

$199.95
RKI Instruments 81-0158RK-04 Calibration Gas: 50% LEL Isobutane, 12% Oxygen, 50 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

RKI Instruments 81-0158RK-04 Calibration Gas: 50% LEL Isobutane, 12% Oxygen, 50 ppm Carbon Monoxide, 25 ppm Hydrogen Sulfide, Balance Nitrogen

$169.95
RKI Instruments 81-0159RK-02 Calibration Gas: 50% LEL Methane, 12% Oxygen, 50 ppm Carbon Monoxide, 5 ppm Sulfur Dioxide, Balance Nitrogen

RKI Instruments 81-0159RK-02 Calibration Gas: 50% LEL Methane, 12% Oxygen, 50 ppm Carbon Monoxide, 5 ppm Sulfur Dioxide, Balance Nitrogen

$199.95
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