“Propane (C3H8)” has been added to your cart. View cart 🔍 $241.30 120 Liter Hydrogen Sulfide (H2S), Carbon Monoxide (CO), Methane (CH4), Oxygen (O2) quantity Add to cart SKU: GFX120-155-1500-I Category: Gas Cylinders Description Description Hydrogen Sulfide 25 ppm/ Carbon Monoxide 50 ppm/ Methane 2.5% (50% LEL)/ Oxygen 12.0%/ N2 Related products Carbon Monoxide (CO) $109.25 Add to cart Propane (C3H8) $52.25 Add to cart Methane (CH4) $95.00 Add to cart Oxygen (O2) $95.00 Add to cart