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The N-H420 CNG regulator is a high pressure regulator with for use with up to 275 HP engines.   This regulator is equipped with a silicone secondary diaphragm. This model provides a positive pressure output


Model Specific: N-H420-SNGA

  • Adjustable positive pressure output for venturi applications where vacuum signal may be weak at low engine speeds.
  • Will flow ~1cfm with outlet @ atmospheric pressure & interrupts flow if ~8" H2O backpressure is developed at the output.

H420 Natural Gas Regulator/Converter/Vaporizer (Positive Pressure)

  • Most Items come with warranty of 1 year from date of shipment. Please contact Customer Service to determine the eligibility for this specific part for refund or return. (

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