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345S 8% Butane, 15 CO2 in Nitrogen

GASCO 345S Calibration Gas Precision Calibration Gas 8% Butane, 15% Carbon Dioxide, Balance Nitrogen, Calibration Certificate NIST, Made in the USA

Precision Calibration Gas Mixtures for all gas detectors. NIST Standards, Flow Regulators, Gas Generators. Accurately calibrate your monitors with GASCO GasCalibration Gas is ISO 9001