“Carbon Monoxide (CO)” has been added to your cart. View cart $95.00 103 Liter 1 in stock Methane (CH4) quantity Add to cart SKU: G103L-CH4-20L-I Category: Gas Cylinders Description Description CH4, 20% LEL in air Related products Hydrogen Sulfide (H2S) $142.50 Add to cart Hydrogen Chloride (HCL) $304.00 Add to cart Hydrogen Chloride (HCL) $304.00 Add to cart Propane (C3H8) $52.25 Add to cart