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ORR Calibration Gas - H2S, 25 ppm, CO, 100 ppm, Pentane, 25% LEL, O2, 19%, Balance N2
$161.70
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ORR Calibration Gas - 100 PPM CO - 25 PPM H2S - 2.5% CH4 (50% LEL), 18% O2, Bal N2 - 34L
$114.04
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ORR Constant Flow Regulator, 0.5 lpm, Fits All 58 (B) , 103 (C), 116 (FD) Liter and 34 (D) Liter Aluminum Cylinders
$165.96
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ORR Calibration Gas - Mix - 25% LEL Pentane, 18% O2, 100ppm CO, 25ppm H2S, Bal N2 - 58L (Recommended for Ventis MX4)
$223.49
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ORR Calibration Gas - 100 ppm CO, 25 ppm H2S, 18% O2, 25% LEL Pentane - 116L
$175.84
