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Shop by Brand - Multi-Gas Mix - Single Gas Mix - RKI Instruments Replacement Calibration Gas

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. RKI Instruments 81-0001RK-23 Replacement Calibration Gas - 30% LEL Hydrogen (103 Liter)

    RKI Instruments 81-0001RK-23 Replacement Calibration Gas - 30% LEL Hydrogen (103 Liter)

    $145.00
    30% LEL Hydrogen Calibration Gas, Balance Air, 103 Liter Steel Cylinder (RKI Instruments 81-0001RK-23 Equivalent).
  2. RKI Instruments 81-0001RK Replacement Calibration Gas - 25% LEL Hydrogen (17 Liter)

    RKI Instruments 81-0001RK Replacement Calibration Gas - 25% LEL Hydrogen (17 Liter)

    $50.00
    25% LEL Hydrogen Calibration Gas, Balance Air, 17 Liter Steel Cylinder (RKI Instruments 81-0001RK Equivalent).
  3. RKI Instruments 81-0000RK-73 Replacement Calibration Gas - 500 PPM Hydrogen (34 Liter)

    RKI Instruments 81-0000RK-73 Replacement Calibration Gas - 500 PPM Hydrogen (34 Liter)

    $62.00
    500 PPM Hydrogen Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RKI Instruments 81-0000RK-73 Equivalent).
  4. RKI Instruments 81-0000RK-61 Replacement Calibration Gas - 5000 PPM Hydrogen (34 Liter)

    RKI Instruments 81-0000RK-61 Replacement Calibration Gas - 5000 PPM Hydrogen (34 Liter)

    $62.00
    5000 PPM Hydrogen Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RKI Instruments 81-0000RK-61 Equivalent).
  5. RKI Instruments 81-0000RK-23 Replacement Calibration Gas - 2000 PPM Hydrogen (103 Liter)

    RKI Instruments 81-0000RK-23 Replacement Calibration Gas - 2000 PPM Hydrogen (103 Liter)

    $145.00
    2000 PPM Hydrogen Calibration Gas, Balance Air, 103 Liter Steel Cylinder (RKI Instruments 81-0000RK-23 Equivalent).
  6. RKI Instruments 81-0001RK-21 Replacement Calibration Gas - 30% LEL Hydrogen (34 Liter)

    RKI Instruments 81-0001RK-21 Replacement Calibration Gas - 30% LEL Hydrogen (34 Liter)

    $62.00
    30% LEL Hydrogen Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RKI Instruments 81-0001RK-21 Equivalent).
  7. RKI Instruments 81-0000RK-41 Replacement Calibration Gas - 3000 PPM Hydrogen (34 Liter)

    RKI Instruments 81-0000RK-41 Replacement Calibration Gas - 3000 PPM Hydrogen (34 Liter)

    $62.00
    3000 PPM Hydrogen Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RKI Instruments 81-0000RK-41 Equivalent).
  8. RKI Instruments 81-0000RK-03 Replacement Calibration Gas - 1000 PPM Hydrogen (103 Liter)

    RKI Instruments 81-0000RK-03 Replacement Calibration Gas - 1000 PPM Hydrogen (103 Liter)

    $145.00
    1000 PPM Hydrogen Calibration Gas, Balance Air, 103 Liter Steel Cylinder (RKI Instruments 81-0000RK-03 Equivalent).
  9. RKI Instruments 81-0000RK Replacement Calibration Gas - 1000 PPM Hydrogen (17 Liter)

    RKI Instruments 81-0000RK Replacement Calibration Gas - 1000 PPM Hydrogen (17 Liter)

    $50.00
    1000 PPM Hydrogen Calibration Gas, Balance Air, 17 Liter Steel Cylinder (RKI Instruments 81-0000RK Equivalent).
  10. RKI Instruments 81-0000RK-01 Replacement Calibration Gas - 1000 PPM Hydrogen (34 Liter)

    RKI Instruments 81-0000RK-01 Replacement Calibration Gas - 1000 PPM Hydrogen (34 Liter)

    $62.00
    1000 PPM Hydrogen Calibration Gas, Balance Air, 34 Liter Steel Cylinder (RKI Instruments 81-0000RK-01 Equivalent).
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