PortaGas Calibration Gas
**SHIPPING NOT AVAILABLE THROUGH WEBSITE - PLEASE CALL FOR SHIPPING QUOTES**
H2S 25ppm balance Nitrogen, 58L
H2S 25ppm, Carbon Monoxide 100ppm, Methane 2.5% (50% LEL), Oxygen 18%, 58L
Regulator Series 100, .5LPM
(Calibration gas not available for shipping)
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