$200 - $300, Portagas

Norlab Z105325PM68 Equivalent Calibration Gas, Hydrogen Sulfide 25ppm, Carbon Monoxide 100ppm, Methane 2.5% (50% LEL), Oxygen 13%, Nitrogen Balance, 58 Liter Portagreen Aluminum Cylinder

Norlab Z105325PM82 Equivalent Calibration Gas, Hydrogen Sulfide 25ppm, Carbon Monoxide 50ppm, Methane 2.5% (50% LEL), Oxygen 18%, Nitrogen Balance, 58 Liter Portagreen Aluminum Cylinder

Norlab Z105310PM24 Equivalent Calibration Gas, Hydrogen Sulfide 10ppm, Carbon Monoxide 50ppm, Methane 2.5% (50% LEL), Oxygen 20.9%, Nitrogen Balance, 58 Liter Portagreen Aluminum Cylinder

Norlab Z105310PM17 Equivalent Calibration Gas, Hydrogen Sulfide 10ppm, Carbon Monoxide 35ppm, Methane (10% LEL), Oxygen 18%, Nitrogen Balance, 58 Liter Portagreen Aluminum Cylinder

Norlab 8180 Demand Flow Regulator with CGA 180

Norlab 8C10 Regulator, Demand Flow, Fits 34GAL, 58GAL, 100GAL, 116GAL

Norlab 8600 Demand Flow Regulator with CGA 600