![GASCO 421: 100 PPM Carbon Monoxide 50% LEL Methane 25 PPM Hydrogen Sulfide 18% Oxygen in Nitrogen 58 Liter Cylinder](http://www.petromarine.com/cdn/shop/products/GascoCyl2_{width}x.jpg?v=1617069741)
GASCO 421: 100 PPM Carbon Monoxide 50% LEL Methane 25 PPM Hydrogen Sulfide 18% Oxygen in Nitrogen 58 Liter Cylinder
Product Description
- 100 PPM Carbon Monoxide 2.5% CH4 (50% LEL) Methane 25 PPM Hydrogen Sulfide 18% Oxygen in Nitrogen
- Contained in an Aluminum Cylinder
- Cylinder connection C-10 5/8"-18 UNF
- Calibration Certificate NIST
- Made in the USA
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