Best Natural Gas 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
Value for Money
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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
13% Off
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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 part numbers: g-kn, garretson, garretson-039-99.
- Designed for low pressure Natural Gas and LPG Vapor fuels.
- Fits small engines requiring low pressure propane or natural gas.
- Includes 039-122 regulator, 3/8 fuel connector set, and 4 clamps as shown.
- Quality guarantee: 3-month return or exchange policy; customer support available for inquiries.
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- Compatible with part numbers: g-kn, garretson, garretson-039-99.
- Designed for low pressure Natural Gas and LPG Vapor fuels.
- Fits small engines requiring low pressure propane or natural gas.
- Includes 039-122 regulator, 3/8 fuel connector set, and 4 clamps as shown.
- Quality guarantee: 3-month return or exchange policy; customer support available for inquiries.
#5
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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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#6
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- Utilizes existing carburetor port for natural gas connection, allowing for reversible operation without modifications.
- Facilitates easy reconnection to propane via stock hose for flexibility in fuel choice.
- Designed for low pressure natural gas conversion, compatible with DUROMAX XP12000EH models.
- Inlet pressure requirements range from 9 to 13.8 inches of water column.
- Includes one natural gas conversion kit as depicted in the product images.
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- Utilizes existing carburetor port for natural gas connection, allowing for reversible operation without modifications.
- Facilitates easy reconnection to propane via stock hose for flexibility in fuel choice.
- Designed for low pressure natural gas conversion, compatible with DUROMAX XP12000EH models.
- Inlet pressure requirements range from 9 to 13.8 inches of water column.
- Includes one natural gas conversion kit as depicted in the product images.
#7
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- Interchange Part Number: 039-122
- Fitment includes C-039-122, 039-12, 075211, 0D2530, 148-0311, 75211
- Compatible with low-pressure regulator generators for LP engines up to 30 kW (40 hp) and NG engines up to 22.37 kW (30 hp)
- User-friendly installation that requires minimal mechanical expertise
- Customer support available for any issues with the product
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- Interchange Part Number: 039-122
- Fitment includes C-039-122, 039-12, 075211, 0D2530, 148-0311, 75211
- Compatible with low-pressure regulator generators for LP engines up to 30 kW (40 hp) and NG engines up to 22.37 kW (30 hp)
- User-friendly installation that requires minimal mechanical expertise
- Customer support available for any issues with the product
#8
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- Reliable pressure reduction for safe gas flow
- Compatible with various KitchenAid grills with 3/8" male flare fittings
- Adapter for easy connection to 1/2-inch natural gas pipes
- Standard flare connections for versatile installation
- Durable construction ensures secure and safe operation
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- Reliable pressure reduction for safe gas flow
- Compatible with various KitchenAid grills with 3/8" male flare fittings
- Adapter for easy connection to 1/2-inch natural gas pipes
- Standard flare connections for versatile installation
- Durable construction ensures secure and safe operation
#9
7% Off
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- Manufactured in the United States
- Model 325-3L-1/2
- Dimensions: 12 x 12 x 6 inches
- Weight: 1 lb
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- Manufactured in the United States
- Model 325-3L-1/2
- Dimensions: 12 x 12 x 6 inches
- Weight: 1 lb
#10
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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
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