“Ammonia (NH3)” has been added to your cart. View cart $241.30 120 Liter 1 in stock Hydrogen Sulfide (H2S), Carbon Monoxide (CO), Methane (CH4), Oxygen (O2) quantity Add to cart SKU: GFX120-140-2500-I Category: Gas Cylinders Description Description Hydrogen Sulfide 10 ppm/ Carbon Monoxide 50 ppm/ Methane 2.5% (50% LEL)/ Oxygen 18.0%/ N2 Related products Propane (C3H8) $52.25 Add to cart Hydrogen Cyanide (HCN) $232.75 Add to cart Silane (SiH4) $304.00 Add to cart Ammonia (NH3) $304.00 Add to cart