“Propane (C3H8)” has been added to your cart. View cart $95.00 103 Liter Methane (CH4) quantity Add to cart SKU: G103L-CH4-20L-I Category: Gas Cylinders Description Description CH4, 20% LEL in air Related products Carbon Dioxide (CO2) $109.25 Add to cart Methane (CH4) $128.73 Add to cart Nitrogen (N2) $95.00 Add to cart Carbon Monoxide (CO) $109.25 Add to cart