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Calibration gas mix: 2.5% CH4 (50%LEL), 250ppm CO, 20.9% O2
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2.5% CH4 (50%LEL), 250ppm CO, 20.9% O2

    Model   Product Name+   Buy Now   Price 
 2.5% Methane (50% LEL), 250ppm Carbon<br /> Monoxide, 20.9% Oxygen balance Nitrogen<br /> PORTACAL® calibration gas, 34LS   56-620N-34LS   2.5% Methane (50% LEL), 250ppm Carbon
 Monoxide, 20.9% Oxygen balance Nitrogen
 PORTACAL® calibration gas, 34LS
 

 $85.00 
 2.5% Methane (50% LEL), 250ppm Carbon<br /> Monoxide, 20.9% Oxygen balance Nitrogen<br /> PORTACAL® calibration gas, 17LS   56-620N-17LS   2.5% Methane (50% LEL), 250ppm Carbon
 Monoxide, 20.9% Oxygen balance Nitrogen
 PORTACAL® calibration gas, 17LS
 

 $65.00 
 2.5% Methane (50% LEL), 250ppm Carbon<br /> Monoxide, 20.9% Oxygen balance Nitrogen<br /> PORTACAL® calibration gas, 105LA   56-620N-105L   2.5% Methane (50% LEL), 250ppm Carbon
 Monoxide, 20.9% Oxygen balance Nitrogen
 PORTACAL® calibration gas, 105LA
 

 $149.95 
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Step 1 - Gas MixturesStep 2 - RegulatorsStep 3 - Carrying Case and Accessories
Current Build-A-Kit Discounts Your Kit
Save $50  When You Purchase:
3 Calibration Gas cylinders (Any size, excluding bump test)
1 Regulator
1 Carrying Case
Save $35  When You Purchase:
2 Calibration Gas cylinders (Any size, excluding bump test)
1 Regulator
1 Carrying Case
Save $20  When You Purchase:
1 Calibration Gas cylinders (Any size, excluding bump test)
1 Regulator
1 Carrying Case
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