“Hydrogen Chloride (HCL)” has been added to your cart. View cart $118.75 34 Liter Hydrogen Sulfide (H2S), Carbon Monoxide (CO), Methane (CH4), Oxygen (O2) quantity Add to cart SKU: GFX34-150-100-I Category: Gas Cylinders Description Description Hydrogen Sulfide 20 ppm/ Carbon Monoxide 60 ppm/ Methane 1.45% (58% LEL Pentane Equiv.)/ Oxygen 15.0%/ N2 Related products Nitric Oxide (NO) $304.00 Add to cart Hydrogen Cyanide (HCN) $232.75 Add to cart Nitrogen (N2) $95.00 Add to cart Methane (CH4) $128.73 Add to cart