“Methane (CH4)” has been added to your cart. View cart $189.05 60 Liter 1 in stock Hydrogen Sulfide (H2S), Carbon Monoxide (CO), Methane (CH4), Oxygen (O2) quantity Add to cart SKU: GFX60-155-1500-I Category: Gas Cylinders Description Description Hydrogen Sulfide 25 ppm/ Carbon Monoxide 50 ppm/ Methane 2.5% (50% LEL)/ Oxygen 12.0%/ N2 Related products Propane (C3H8) $52.25 Add to cart Carbon Dioxide (CO2) $109.25 Add to cart Propane (C3H8) $52.25 Add to cart Carbon Monoxide (CO) $109.25 Add to cart