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We've made it easy for you to find your equivalent calibration gas. Just enter your part number in the search box (top right of every page). Or use the filters in the left column to narrow in on your calibration gas. Save up to 50% of the cost of brand name gases. We supply identical mixtures with ISO and NIST certification.

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  1. Biosystems 54-9079 Replacement Calibration Gas - 50% LEL Methane (34 Liter)

    Biosystems 54-9079 Replacement Calibration Gas - 50% LEL Methane (34 Liter)

    $62.00
    50% LEL Methane Calibration Gas, Balance Air, 34 Liter Steel Cylinder (Biosystems 54-9079 Equivalent).
  2. RAE Systems Replacement Calibration Gas - 20% by volume Methane (34 Liter)

    RAE Systems 600-0137-000 Replacement Calibration Gas - 20% by volume Methane (34 Liter)

    $89.00
    20% by volume Methane Calibration Gas, Balance Nitrogen, 34 Liter Steel Cylinder (RAE Systems 600-0137-000 Equivalent).
  3. RAE Systems 600-0071-020 Replacement Calibration Gas - 20% LEL Methane (34 Liter)

    RAE Systems 600-0071-020 Replacement Calibration Gas - 20% LEL Methane (34 Liter)

    $62.00
    20% LEL Methane Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RAE Systems 600-0071-020 Equivalent).
  4. RAE Systems 600-0071-000 Replacement Calibration Gas - 50% LEL Methane (34 Liter)

    RAE Systems 600-0071-000 Replacement Calibration Gas - 50% LEL Methane (34 Liter)

    $62.00
    50% LEL Methane Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RAE Systems 600-0071-000 Equivalent).
  5. Draeger 4594625 Replacement Calibration Gas - 40% by volume Methane (34 Liter)

    Draeger 4594625 Replacement Calibration Gas - 40% by volume Methane (34 Liter)

    $62.00
    40% by volume Methane Calibration Gas, Balance Nitrogen, 34 Liter Steel Cylinder (Draeger 4594625 Equivalent).
  6. RKI Instruments 81-0012RK-01 Replacement Calibration Gas - 50% LEL Methane (34 Liter)

    RKI Instruments 81-0012RK-01 Replacement Calibration Gas - 50% LEL Methane (34 Liter)

    $62.00
    50% LEL Methane Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RKI Instruments 81-0012RK-01 Equivalent).
  7. RKI Instruments 81-0085RK-01 Replacement Calibration Gas - 1000 PPM Methane (34 Liter)

    RKI Instruments 81-0085RK-01 Replacement Calibration Gas - 1000 PPM Methane (34 Liter)

    $62.00
    1000 PPM Methane Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RKI Instruments 81-0085RK-01 Equivalent).
  8. RKI Instruments 81-0010RK-01 Replacement Calibration Gas - 10% LEL Methane (34 Liter)

    RKI Instruments 81-0010RK-01 Replacement Calibration Gas - 10% LEL Methane (34 Liter)

    $62.00
    10% LEL Methane Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RKI Instruments 81-0010RK-01 Equivalent).
  9. RKI Instruments 81-0011RK-01 Replacement Calibration Gas - 10% LEL Methane (34 Liter)

    RKI Instruments 81-0011RK-01 Replacement Calibration Gas - 10% LEL Methane (34 Liter)

    $62.00
    10% LEL Methane Calibration Gas, Balance Nitrogen, 34 Liter Steel Cylinder (RKI Instruments 81-0011RK-01 Equivalent).
  10. RKI Instruments 81-0086RK-01 Replacement Calibration Gas - 5000 PPM Methane (34 Liter)

    RKI Instruments 81-0086RK-01 Replacement Calibration Gas - 5000 PPM Methane (34 Liter)

    $62.00
    5000 PPM Methane Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RKI Instruments 81-0086RK-01 Equivalent).
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