$128.73 34 Liter Steel Methane (CH4) quantity Add to cart SKU: G34L-CH4-30L-I Category: Gas Cylinders Description Description CH4, 30% LEL in air Related products Phosphine (PH3) $304.00 Add to cart Hydrogen Cyanide (HCN) $232.75 Add to cart Oxygen (O2) $95.00 Add to cart Carbon Monoxide (CO) $109.25 Add to cart