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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. GfG 7800-013 Replacement Calibration Gas - 10 PPM Carbon Monoxide (17 Liter)

    GfG 7800-013 Replacement Calibration Gas - 10 PPM Carbon Monoxide (17 Liter)

    $50.00
    10 PPM Carbon Monoxide Calibration Gas, Balance Air, 17 Liter Steel Cylinder (GfG 7800-013 Equivalent).
  2. GfG 7803-028 Replacement Calibration Gas - 5 PPM Chlorine (58 Liter)

    GfG 7803-028 Replacement Calibration Gas - 5 PPM Chlorine (58 Liter)

    $335.00
    5 PPM Chlorine Calibration Gas, Balance Nitrogen, 58 Liter Aluminum Cylinder (GfG 7803-028 Equivalent).
  3. GfG 7800-018 Replacement - 100 PPM Carbon Monoxide, 20% LEL Methane, 20.9% Oxygen (Air), Balance Nitrogen (17L)

    GfG 7800-018 Replacement - 100 PPM Carbon Monoxide, 20% LEL Methane, 20.9% Oxygen (Air), Balance Nitrogen (17L)

    $50.00
    100 PPM Carbon Monoxide, 20% LEL Methane, 20.9% Oxygen (Air), Balance Nitrogen, 17 Liter Steel Cylinder (GfG 7800-018 Equivalent).
  4. GfG 7800-002 Replacement Calibration Gas - 50 PPM Carbon Monoxide (17 Liter)

    GfG 7800-002 Replacement Calibration Gas - 50 PPM Carbon Monoxide (17 Liter)

    $50.00
    50 PPM Carbon Monoxide Calibration Gas, Balance Air, 17 Liter Steel Cylinder (GfG 7800-002 Equivalent).
  5. GfG 7803-018 Replacement Calibration Gas - 5 PPM Sulfur Dioxide (58 Liter)

    GfG 7803-018 Replacement Calibration Gas - 5 PPM Sulfur Dioxide (58 Liter)

    $150.00
    5 PPM Sulfur Dioxide Calibration Gas, Balance Nitrogen, 58 Liter Aluminum Cylinder (GfG 7803-018 Equivalent).
  6. GfG 7800-010 Replacement - 20% LEL Methane, 19% Oxygen, Balance Nitrogen (17L)

    GfG 7800-010 Replacement - 20% LEL Methane, 19% Oxygen, Balance Nitrogen (17L)

    $50.00
    20% LEL Methane, 19% Oxygen, Balance Nitrogen, 17 Liter Steel Cylinder (GfG 7800-010 Equivalent).
  7. GfG 7800-004 Replacement Calibration Gas - 200 PPM Carbon Monoxide (17 Liter)

    GfG 7800-004 Replacement Calibration Gas - 200 PPM Carbon Monoxide (17 Liter)

    $50.00
    200 PPM Carbon Monoxide Calibration Gas, Balance Air, 17 Liter Steel Cylinder (GfG 7800-004 Equivalent).
  8. GfG 7803-022 Replacement Calibration Gas - 20 PPM Hydrogen Sulfide (58 Liter)

    GfG 7803-022 Replacement Calibration Gas - 20 PPM Hydrogen Sulfide (58 Liter)

    $150.00
    20 PPM Hydrogen Sulfide Calibration Gas, Balance Nitrogen, 58 Liter Aluminum Cylinder (GfG 7803-022 Equivalent).
  9. GfG 7800-001 Replacement Calibration Gas - 20 PPM Carbon Monoxide (17 Liter)

    GfG 7800-001 Replacement Calibration Gas - 20 PPM Carbon Monoxide (17 Liter)

    $50.00
    20 PPM Carbon Monoxide Calibration Gas, Balance Air, 17 Liter Steel Cylinder (GfG 7800-001 Equivalent).
  10. GfG 7800-006 Replacement Zero Air - 20.9% Oxygen (58 Liter)

    GfG 7800-006 Replacement Zero Air - 20.9% Oxygen (58 Liter)

    $125.00
    20.9% Oxygen (Zero Air) Calibration Gas, Balance Nitrogen, 58 Liter Aluminum Cylinder (GfG 7800-006 Equivalent).
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Items 1 to 10 of 14 total

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