Best Natural Gas Pressure Regulator for Generator in 2025
Updated on August 2025
#1
Recommended
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- Maxitrol Gas Pressure Regulator model 325-5AL-66
- Designed to regulate gas pressure
- Suitable for a variety of gas appliances
- Durable construction ensures long-lasting use
- Easy installation and maintenance
- Compact design for space-saving
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- Maxitrol Gas Pressure Regulator model 325-5AL-66
- Designed to regulate gas pressure
- Suitable for a variety of gas appliances
- Durable construction ensures long-lasting use
- Easy installation and maintenance
- Compact design for space-saving
#2
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- Body size: 3/4 x 3/4-inch FNPT
- Maximum inlet pressure: 10 psig (0.69 bar), emergency inlet pressure: 50 psig (3.4 bar)
- Outlet pressure range: 9 to 13 inches W.C (22 to 32 mbar)
- Capacity: 1,400,000 BTU/hr
- Vent size: 3/4 NPT screened
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- Body size: 3/4 x 3/4-inch FNPT
- Maximum inlet pressure: 10 psig (0.69 bar), emergency inlet pressure: 50 psig (3.4 bar)
- Outlet pressure range: 9 to 13 inches W.C (22 to 32 mbar)
- Capacity: 1,400,000 BTU/hr
- Vent size: 3/4 NPT screened
#3
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- Compatible with g-kn Regulator and Garretson models
- Replaces C-039-122 and other specified part numbers
- Suitable for low-pressure propane or natural gas applications in small engines
- Maximum inlet pressure rating: 13.84" WC
- Includes 1 regulator and connector set
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- Compatible with g-kn Regulator and Garretson models
- Replaces C-039-122 and other specified part numbers
- Suitable for low-pressure propane or natural gas applications in small engines
- Maximum inlet pressure rating: 13.84" WC
- Includes 1 regulator and connector set
#4
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- Compatible with low pressure regulators for LP engines up to 30 kW and NG engines up to 22.37 kW
- Interchange part number: 039-122
- Designed for low pressure propane or natural gas applications in small engines, including Briggs & Stratton powered welders and standby power generators
- Engineered for sensitivity and ease of use with low pressure natural gas and LPG vapor fuels
- Inquiries about products can be directed to customer service for a prompt response
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- Compatible with low pressure regulators for LP engines up to 30 kW and NG engines up to 22.37 kW
- Interchange part number: 039-122
- Designed for low pressure propane or natural gas applications in small engines, including Briggs & Stratton powered welders and standby power generators
- Engineered for sensitivity and ease of use with low pressure natural gas and LPG vapor fuels
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#5
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- Compatible with both natural gas (NG) and liquid propane (LP), with an inlet pressure of up to 1/2 PSI and outlet pressure options of 4" or 10" Water Column.
- Inlet and outlet pipe threads are designed for 3/4" FNPT connections; ensure proper measurement for compatibility with gas pipes or regulators.
- Safety certified by CSA, ensuring no gas leaks and maintaining stable airflow during operation.
- Suitable for a variety of applications including propane and natural gas fire pits, gas ranges, water heaters, high BTU outdoor cooking appliances, and standby generators.
- Default setting for natural gas; requires adjustment for liquid propane by reversing the plastic screw.
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- Compatible with both natural gas (NG) and liquid propane (LP), with an inlet pressure of up to 1/2 PSI and outlet pressure options of 4" or 10" Water Column.
- Inlet and outlet pipe threads are designed for 3/4" FNPT connections; ensure proper measurement for compatibility with gas pipes or regulators.
- Safety certified by CSA, ensuring no gas leaks and maintaining stable airflow during operation.
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#6
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- 1/2 PSI gas regulator compatible with natural gas and liquefied gas valves, featuring 1/2" FPT pipe thread for both inlet and outlet.
- Operates at specific pressures: LPG inlet pressure of 2.74Kpa, outlet pressure of 2.45-2.55 kpa, flow rate of 30L/min; for natural gas, inlet pressure is 1.74Kpa, outlet pressure of 0.95-1.05 kpa, flow rate of 50L/min.
- Adjustable gas regulator suitable for both natural and propane applications, with an easy-to-use aluminum knob for switching between LP and NG settings.
- Temperature range for operation is 32°F-225°F (0°C-107°C); avoid installation near heating equipment or in extremely cold conditions to maintain regulator performance.
- Designed for various applications including natural gas grills, heaters, ovens, and gas welding equipment, facilitating safe pressure regulation.
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- 1/2 PSI gas regulator compatible with natural gas and liquefied gas valves, featuring 1/2" FPT pipe thread for both inlet and outlet.
- Operates at specific pressures: LPG inlet pressure of 2.74Kpa, outlet pressure of 2.45-2.55 kpa, flow rate of 30L/min; for natural gas, inlet pressure is 1.74Kpa, outlet pressure of 0.95-1.05 kpa, flow rate of 50L/min.
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#7
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- Natural Gas (NG) compatible with an inlet pressure of 1/2 PSI and an outlet pressure range of 4" - 8" Water Column.
- Uses 1/2" Inlet and 1/2" Outlet FPT gas pipe connections; ensure compatibility by measuring gas pipe opening at 13/16 inch.
- Features 13/16" openings designed for 1/2" gas pipes, with a nominal interior diameter of 1/2".
- Model RV47L, adjustable outlet pressure, suitable for a range of 4" - 8" Water Column and inlet pressure of 1/2 PSI.
- Operates within a temperature range of 32°F to 225°F (0°C to 107°C), with compact dimensions of 2-7/8” W x 2-1/4” D x 2-1/2” H.
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- Natural Gas (NG) compatible with an inlet pressure of 1/2 PSI and an outlet pressure range of 4" - 8" Water Column.
- Uses 1/2" Inlet and 1/2" Outlet FPT gas pipe connections; ensure compatibility by measuring gas pipe opening at 13/16 inch.
- Features 13/16" openings designed for 1/2" gas pipes, with a nominal interior diameter of 1/2".
- Model RV47L, adjustable outlet pressure, suitable for a range of 4" - 8" Water Column and inlet pressure of 1/2 PSI.
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#8
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- Compatible with G-KN, Garretson, and associated models
- Replaces C-039-122 and various other models
- Suitable for Briggs & Stratton propane and natural gas generators
- Designed for low-pressure propane or natural gas applications in small engines, including welders and generators
- Includes 039-122 regulator in the package
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- Compatible with G-KN, Garretson, and associated models
- Replaces C-039-122 and various other models
- Suitable for Briggs & Stratton propane and natural gas generators
- Designed for low-pressure propane or natural gas applications in small engines, including welders and generators
- Includes 039-122 regulator in the package
#9
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- Replacement part number: 039-122 (039122)
- Compatible with low pressure regulators for generators, supporting LP engines up to 30 kW (40 hp) and NG engines up to 22.37 kW (30 hp)
- Suitable for Briggs & Stratton powered welders, Craftsman generators, and standby power generators
- High-quality product; ensure compatibility with your model before purchasing
- For inquiries, please reach out to us for assistance.
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- Replacement part number: 039-122 (039122)
- Compatible with low pressure regulators for generators, supporting LP engines up to 30 kW (40 hp) and NG engines up to 22.37 kW (30 hp)
- Suitable for Briggs & Stratton powered welders, Craftsman generators, and standby power generators
- High-quality product; ensure compatibility with your model before purchasing
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#10
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- Gas type: Natural Gas (NG) with inlet pressure of 1/2 PSI and adjustable outlet pressure ranging from 3" to 6" Water Column.
- Compatible with 3/4" FPT gas pipes; ensure the gas pipe opening measures approximately 1-1/16" as indicated in the specifications.
- Regulator designed for 1-1/16" openings compatible with 3/4" gas pipes; check measurements before purchase.
- Model RV48L marked for 1/2 PSIG and adjustable outlet pressure between 3" to 6" Water Column.
- Operating temperature range from 32°F to 225°F (0°C to 107°C); avoid installation near heating equipment or in extreme cold conditions.
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- Gas type: Natural Gas (NG) with inlet pressure of 1/2 PSI and adjustable outlet pressure ranging from 3" to 6" Water Column.
- Compatible with 3/4" FPT gas pipes; ensure the gas pipe opening measures approximately 1-1/16" as indicated in the specifications.
- Regulator designed for 1-1/16" openings compatible with 3/4" gas pipes; check measurements before purchase.
- Model RV48L marked for 1/2 PSIG and adjustable outlet pressure between 3" to 6" Water Column.
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