Recalibration Gas Mixture
Co - 100PPM - Carbon Monoxide
H2S - 25PPM - Hydrogen Sulfide
CH4 - 2.5% Vol (50% LEL) - Methane
O2 - 18% VOL - Oxygen
N2 - Balance - Nitrogen
2.05 Cu. ft 58L , Compressed in a smaller ecosmart refillable cylinder.
Bottle Return Option:
Instructions on the bottle or the bottles can be returned to the store to be returned for you.