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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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RKI Instruments 81-0089RK-03 Replacement - 50 PPM Carbon Monoxide, 15% LEL Hexane, 12% Oxygen, Balance Nitrogen (103L)
$145.0050 PPM Carbon Monoxide, 15% LEL Hexane, 12% Oxygen, Balance Nitrogen, 103 Liter Steel Cylinder (RKI Instruments 81-0089RK-03 Equivalent). -
RKI Instruments 81-0062RK-03 Replacement Calibration Gas - 50 PPM Carbon Monoxide (103 Liter)
$145.0050 PPM Carbon Monoxide Calibration Gas, Balance Nitrogen, 103 Liter Steel Cylinder (RKI Instruments 81-0062RK-03 Equivalent). -
RKI Instruments 81-0001RK-23 Replacement Calibration Gas - 30% LEL Hydrogen (103 Liter)
$145.0030% LEL Hydrogen Calibration Gas, Balance Air, 103 Liter Steel Cylinder (RKI Instruments 81-0001RK-23 Equivalent). -
RKI Instruments 81-0018RK-03 Replacement Calibration Gas - 50% LEL Isobutane (103 Liter)
$145.0050% LEL Isobutane Calibration Gas, Balance Air, 103 Liter Steel Cylinder (RKI Instruments 81-0018RK-03 Equivalent). -
RKI Instruments 81-0079RK-03 Replacement Calibration Gas - 500 PPM Methane (103 Liter)
$145.00500 PPM Methane Calibration Gas, Balance Air, 103 Liter Steel Cylinder (RKI Instruments 81-0079RK-03 Equivalent). -
RKI Instruments 81-0076RK-03 Replacement Zero Air - 20.9% Oxygen (103 Liter)
$139.0020.9% Oxygen (Zero Air) Calibration Gas, Balance Nitrogen, 103 Liter Steel Cylinder (RKI Instruments 81-0076RK-03 Equivalent).
