MSA Altair 4 Calibration Gas - 34L
- Patented Cylinder Coating and Hydrogen Sulfide Stabilization Process Increases Stability.
- Concentration: 25ppm Hydrogen Sulfide, 50ppm Carbon Monoxide, 50% LEL Methane, 12% VOL O2, balance Nitrogen.
- Equivalent Mixes: RKI 81-0154RK-04, Gasco 34L-409-Mix, Portagas 70094671, Norlab F105325PM51.
- Free gas detector calibration support with every sale, we'll hold your hand the whole way.