10 Best Keg CO2 Regulators - Recommended by the Pros (2023)

Carbon dioxide is a powerful and essential part of the beer-making process (and when creating excellent kombucha, if that’s more your speed). Not only does CO2 help beermakers achieve the right foam head whenever a beer is poured, but the addition of CO2 has significant impacts on a beer’s acidity and taste. Needless to say, having the best keg CO2 regulator can make all the difference.

Whether you’re an avid home brewer or you own and regulate beer kegs for breweries, restaurants, and other venues, approaching the job with the best equipment is crucial. Consider the following list of the best keg CO2 regulators recommended by the professionals.

What Do Beer Keg CO2 Regulators Do?

A beer keg CO2 regulator is all about control. Every good brew master knows that the amount of carbon dioxide infused into a batch of beer will affect the taste, acidity, and foaminess of the finished product. Regulators provide direct control over how much CO2 flows into the mix.

When using a professional grade CO2 regulator, you can easily influence factors like:

  • Pressurization and carbonation of closed bottles or cans (beer and kombucha)
  • Overall mouth feel of each beer or flavor
  • The ability to prevent an overly malty or sweet-tasting beer
  • The airy texture of each unique batch or craft recipe
10 Best Keg CO2 Regulators - Recommended by the Pros (1)10 Best Keg CO2 Regulators - Recommended by the Pros (2)

What to Look for in a Beer Keg CO2 Regulator

When browsing the market for the best beer keg CO2 regulators, many brewmasters stick to a few important criteria. These criteria relate to the control, quality, and durability of each regulator. Many CO2 regulators recommended by the pros have features such as:

  • Ease of use (regardless of the level of experience)
  • Safety mechanisms for controlling pounds of pressure per square inch
  • Long-lasting and strong materials
  • A reliable warranty for extended use
  • Parts that are manufactured and sold within the United States
  • Versatility for different types of tanks and brew projects

Single vs. Dual Gauge CO2 Regulators

When purchasing a CO2 keg regulator, you’ll quickly notice that some have one gauge and others have two. It’s important to note that certain regulators monitor different outputs. In a dual gauge setup, you’re able to monitor both the amount of pressure that’s being released into the beer and the amount of pressure within the carbon dioxide tank itself.

Single and dual gauge regulators have different price points and features. When deciding between the two, consider the amount of control you need for different areas.

(Video) How-To Use a Draft Beer CO2 Regulator

Top 10 Keg CO2 Regulators

As you search for the best keg CO2 regulators, you’ll discover many different brands, models, and customizations. Check out the list below for 10 professional-grade regulators to meet your commercial or home brewing needs.

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10 Best Keg CO2 Regulators - Recommended by the Pros (3)

1. SPARC Premium Dual Output CO2 Regulator

SPARC Welders offers a professional gradeDualOutput CO2 regulatorthat provides three premium gauges for monitoring your working pressure and tank pressure. This model is easily adaptable to different types of projects. In fact, it’s specifically designed for use with two-tank beer or kombucha setups.

As with other SPARC products, the Dual Output CO2 regulator offers quick installation, heavy duty parts, and a 2-year extended warranty.

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10 Best Keg CO2 Regulators - Recommended by the Pros (4)

2. Taprite T742HP Primary Double Gauge CO2 Regulator, Brass

Taprite’s T742HP Primary Double Gauge CO2 Regulator
is another American-made choice. This low pressure regulator is
adaptable for use on any CO2 tank with a CGA-320 valve, and it removes
the guesswork of knowing when to refill your carbon dioxide supply.

The unique components of this
regulator help the user know when parts should be replaced, and it helps
beermakers quickly find the source of potential CO2 leaks.

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10 Best Keg CO2 Regulators - Recommended by the Pros (5)

3. MRBrew Keg Regulator

The MRBrew Keg Regulator is a budget-friendly option that comes in at under $50 but still offers some brewery-grade features with maximum control. This regulator features a safety relief valve and a gas shut-off valve. These components are perfect for quick and convenient adjustments, which is especially useful if you’re serving many glasses of beer in a short time.

MRBrew also provides hands-on customer support for questions, concerns, and product issues

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10 Best Keg CO2 Regulators - Recommended by the Pros (6)

4. Kegco 542 Pro series

The Kegco 542 is a professional CO2 regulator product made of chrome plated brass. The large face of each gauge and adjustment knob makes this style a user-friendly choice, as the settings can be changed by hand without extra screwdrivers and tools. The model’s shut off valve encourages safe gas distribution and prevents gas line backups, which can cause extra hassle or repairs to your brewery setup.

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10 Best Keg CO2 Regulators - Recommended by the Pros (7)

5. SPARC Premium CO2 Regulator and Gauge

This second choice from SPARC Welders is a Premium CO2 Regulator and gauge designed especially for draft beer, kombucha, and similar beverage setups. Since versatility is an important part of regulating, this option helps you achieve perfect CO2 balance in a variety of keg sizes, half barrels, and quarter barrel units.

Additionally, this product comes with heavy duty gauges built to professional standards, with the added bonus of being able to make manual adjustments. A reliable 2-year warranty protects against any manufacturing defects.


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10 Best Keg CO2 Regulators - Recommended by the Pros (8)

6. TerraBloom Dual System 2 Stage Pressure Regulator

The TerraBloom Dual System 2 Stage Pressure Regulator is a triple gauge system. This means that you can use this regulator on two separate systems while simultaneously monitoring CO2 tank pressure. Installation is easy and traightforward, and all you need to get started is an adjustable wrench.

Although the TerraBloom product is made of durable materials and is easy to read, the product only comes with a 30-day warranty for
manufacturing defects.

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10 Best Keg CO2 Regulators - Recommended by the Pros (9)

7. FERRODAY Dual Gauge CO2 Draft Beer Regulator

This regulator choice from FERRODAY is highly rated by customers, budget-friendly for various project needs, and constructed with heavy duty forged brass. One of the major selling points of this particular regulator is that it has pristine tank washers and relief valve gaskets, which both prevent troublesome gas leaks.

A unique component of this regulator is that it contains a built-in sintered metal filter to keep potentially harmful contaminants out of the regulator and away from your brew.

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10 Best Keg CO2 Regulators - Recommended by the Pros (10)

8. KOMOS® Dual Gauge CO2 Regulator

The Dual Gauge CO2 Regulator from KOMOS® is best recognized for its size, structure, and durability. The gauge has a robust design that promotes and supports heavy use for years to come. Each gauge is made of extra thick stainless steel and comes with rubber bumpers for an added layer of added protection and durability.

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(Video) CO2 Regulator: ✅ Best CO2 Regulators 2023 (Buying Guide)

10 Best Keg CO2 Regulators - Recommended by the Pros (11)

9. TOF Premium Single Product CO2 Draft Beer Regulator

The TOF beer keg regulator is an Italian-made product that helps
users troubleshoot craft beers that are too flat or overly foamy. The dual gauge design monitors the PSI of each brew in addition to helping you maintain accurate pressure within the tank.

To adjust the pressure using the TOF gauge, you’ll need a flathead screwdriver to tighten the nut and lock. Although a bit more hands on, this option is onstructed with high quality materials and is useful for preventing over-pressurization and ruptured tanks.

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10 Best Keg CO2 Regulators - Recommended by the Pros (12)

10. High Performance Double Gauge CO2 Regulator with Polycarbonate Bonnet

Whether you maintain a home brew system or have a full commercial setup, the High Performance Double Gauge is approved by well-known brands like Pepsi and Coca Cola. The design is uniquely suited to handle high flow systems, which are the standard in commercial brewing.

This regulator is unique in that it is made from polycarbonate materials, which makes it more resistant to corrosion and damage from wet environments when compared to other regulators. It also has a short stem and high flow outlet valve in order to regulate CO2 without freezing the gauge mechanism. This feature makes it handy for multi-product systems that require secondary regulation, like in multi-brew setups or soda machines.

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Find the Right CO2 Regulator for Your Needs

Choosing the right CO2 regulator can be a gamechanger for your
brewery or home brew system. With the ability to regulate an ingredient like CO2, you have the opportunity to create a winning combination of taste, acidity, and texture that’s pleasing to both you and your patrons.

Investing in high quality CO2 regulators will make all the difference as you upgrade your beer and kombucha brewing techniques.

(Video) Kegerator Series Part 1: Gas & Regulators


What is the best CO2 pressure for a keg? ›

For a keg refrigerator at 38˚ F, the recommend CO2 pressure is between 12–14 lbs for most domestic beers. This pressure will maintain the level of carbonation that the breweries specify. If the beer is dispensed with too low of a pressure, over time the CO2 that is dissolved in the beer will break out.

What should the CO2 regulator be set at on a kegerator? ›

What pressure should my CO2 tank be set to? This will depend on the beer you are serving but most American breweries recommend a pressure between 10-14 PSI.

What is the difference between a CO2 regulator and a nitrogen regulator? ›

CO2 vs.

Nitrogen and CO2 regulators cannot be interchanged because Nitrogen regulators are designed to withstand higher pressures and have characteristics specific only to nitrogen systems, such as a male thread with conical fittings. If you plan to dispense beer using Nitrogen, you cannot use a CO2 regulator.

How many kegs can you get out of a 5 lb CO2 tank? ›

How many kegs can be dispensed from a CO2 tank? A 5-lb CO2 tank will last between 6-8 half barrels or full kegs before it needs to be filled. A 10-lb CO2 tank will dispense 10-13 full kegs per fill.

What PSI should I carbonate my beer at? ›

Typically, you'll hook up your co2 to the keg, set the regulator at serving pressure, between 8–12 psi, and let it slowly carbonate over the course of 2 weeks or so. Carbonation charts can be used to ensure you get the exact level you want, with allowances made for temperature.

What pressure should a keg be for pouring? ›

The ideal serving pressure should be between 10 and 12 psi, though some styles demand lower and some higher. Typically, 12 psi works well. If your serving pressure is too high, it can pump excess co2 into the keg and lead to foaming.

Why is my keg pouring all foam? ›

Keg care basics for your bar or restaurant

Let the keg settle after moving it – If you move your keg, give it some time to settle down. If you don't, you'll probably experience excessive foaming when you tap it. Just like soda, beer is carbonated – and just like soda, it will foam when you shake it.

Why is my keg pouring foam? ›

Incorrect Temperature – If the beer is too warm or too cold, it will be more easily disturbed and pour as foam. In most models, the beer line is not refrigerated so the first pour will usually be a bit warmer and a bit more foam. Most beers should be kept in the low 40 degree Fahrenheit range.

Do you turn on CO2 before tapping keg? ›

All you need to do is connect the coupler to the beer keg, turn on the CO2 supply, set the pressure, and start pouring. That's how to tap a keg in a kegerator!

Should I use nitrogen or CO2 for keg? ›

A good basic rule of thumb is if the beverage has bubbles, it should be hooked up to CO2. If it's not supposed to have bubbles, then is should be hooked up to nitrogen. While both CO2 and Nitrogen do have bubbles, CO2 bubbles are smaller than Nitrogen bubbles.

How do I know which gas regulator I need? ›

How to choose a gas regulator. Check the appliance itself or the original paperwork for guidance. There should be a data plate outlining the required gas throughput and inlet pressure. Check the type of gas you're using.

How do I choose a gas regulator? ›

The materials of construction for a regulator should be selected based on the properties and purity of the gas being used. Regulators are typically made from brass, aluminum, and 316L stainless steel. Brass is compatible with most of the non-reactive gases. A choice of forged body or barstock construction is available.

How long can kegs go without CO2? ›

Since a picnic pump uses oxygen instead of carbon dioxide, a tapped keg will only last about 12-24 hours depending on the type of beer and how much oxygen was pumped into it. The oxygen will cause the beer to go flat and spoil quickly if you don't finish the keg within that time frame.

How long will a CO2 keg stay fresh? ›

How Long Does a Keg Stay Fresh? For most beers on tap, dispensed with CO2, the rule of thumb is that non-pasteurized beer will retain its freshness for 45-60 days, if proper pressure and temperature are maintained. If you are serving up pasteurized draft beer, the shelf life is around 90-120 days.

Can you over carbonate beer? ›

Typically a beer over carbonates because it is stored in too warm of a location for too long. Yeast will continue to ferment if left to its own devices. Once a beer is carbonated (typically 2 -3 weeks) make sure to move the beer to a location below 55 °F for storage.

How long to carbonate beer at 15 psi? ›

The beer was somewhere around 75% carbonated, definitely enough to drink and enjoy, but it took another 3-4 days to reach peak.
Burst Carbonating.
<15 psiUse carbonation chartUse carbonation chart
30 psi16 hours48 hours
35 psi14 hours34 hours
40 psi12 hours30 hours
2 more rows

How long to let keg sit after tapping? ›

Once you get your keg set up in your kegerator, we would recommend letting it sit for at least an hour or two before drinking from it. This should be plenty of time to let it settle a bit.

How much foam do you tap a keg? ›

It should take 10 to 15 seconds to pour a pint with an inch of foam. For the first few pints (when the keg is still under pressure), you may want to slow down the flow of the beer. You can do this by elevating the tap and glass above your head.

Can you pump a keg too much? ›


So you pump the heck out of the keg. If you pump too much, the beer will be overpressurized and foam up, making for a very painful and frothy pouring process.

How long to carbonate beer at 20 psi? ›

Steps to Force Carbonate your Beer:

CO2 dissolves into beer much more easily when the beer is cold, so ideally, place keg with gas line attached into fridge and leave under pressure for about 24 hours. Adjust pressure down to 20 PSI for 24 hours.

How do you purge the air out of a keg? ›

After sanitizing your keg, set your regulator to low pressure (3-5 psi) and connect it to your sealed keg. Once the pressure equalizes (the hissing/groaning stops), briefly open the pressure release at the top of the keg.

What is the best temp for a kegerator? ›

hours for a keg to settle, and to reach optimal temperature within the kegerator is key. This is always an essential for hosting a party with draft beer! 98% of all issues (especially foaming) arise from temp and pressure! Kegerator should be set to 34-40 degrees.

Why is my keg pouring flat? ›

Flat beer in a keg is usually due to the keg being under gassed or the keg having a gas leak. Before you gas the keg a second time you will need to check the keg for leaks. To do this you need to set your regulator to 40 psi (280kpa) and pump gas into the keg for about 5 minutes. This will be enough to test the keg.

Why is my keg hissing? ›

Hearing an intermittent hiss coming from the Carbonation Dial during the Brewing process is completely normal and nothing to worry about at all. It is simply excess pressure being released.

How often should beer lines be cleaned? ›

At a minimum, you should clean your draught line every two weeks with an alkaline detergent cleaner to remove protein and films that build up quickly. The cleaning chemical should be recirculated through the product line for a minimum of 15 minutes at a velocity up to two gallons/minute.

Which beer is the darkest? ›

Stout: Stouts are the darkest and thickest type of beer and are typically made with highly roasted malt or barley. These beers have a thick, creamy head and are very full-bodied.

Can you tap a keg right away? ›

How Long Should I Chill My Keg Before Tapping? It is important to get your keg cold before serving. Chill your keg for 4-5 hours before tapping to avoid warm and foamy beer. Get a bucket large enough in diameter to hold your keg, and fill the bottom with a layer of ice before placing the keg inside of it.

Does keg have to be cold to carbonate? ›

Most carbonation in kegs is done using pressurized CO2 from a gas cylinder, a process called force carbonation. The fastest results can be achieved when the beer in the keg is at a cold temperature. This will let the CO2 diffuse into the beer more efficiently and at a faster rate.

How do you burp a keg? ›

By lifting the pressure release valve the CO2 will flow into the keg and the air will flow out through this valve. This is called burping the keg and is best done in half a dozen short bursts.

Does CO2 for keg need to be refrigerated? ›

The co2 tank can go inside or outside the refrigerator.

How many kegs will a 20lb CO2? ›

How many kegs of draft beer can a CO2 tank dispense?
Keg Size / Style20oz Cylinder20 lb Cylinder
Corny Keg / Home Brew (5.00 Gallon)2-362-87
Sixth Barrel (5.23 Gallon)1-359-83
Quarter Barrel (7.75 Gallon)1-240-56
Half Barrel (15.50 Gallon)N/A20-28

Is it OK to keep CO2 in kegerator? ›

Should a CO2 tank be inside or outside of the kegerator? Ideally, both the beer keg and the CO2 tank should be stored inside your kegerator fridge: the lower the temperature of your compressed air tank, the more efficiently it will carbonate your beer.

What happens if you oversize a gas regulator? ›

If the gas regulator is too large, too much gas can flow into the appliance potentially causing an explosion. If too small, the appliance will not operate efficiently. At worst, it won't operate at all.

What are the three types of gas regulators? ›

Gas regulator types include LPG gas regulators, acetylene gas bottle regulators and oxygen gas bottle regulators. The gas regulator setup can include bayonet fittings, pol gas fittings and other gas regulator fittings suitable for a variety of gas appliances and equipment such as MIG welders.

How do you size a regulator? ›

Use the formula: 0.33 x A1 x P1 = Q1 (does not apply to regulators with filters). A1 = seat orfice area in mm² P1 = inletpressure in bar (a) Q1 = max. flow of air in Nm³/hour through the seat orifice area.

Do gas regulators need to be calibrated? ›

Calibration gas is an important part in the maintenance of your gas detector to ensure that the sensors are reacting to the gas you are looking for. Calibration gas does have a shelf life and must not be used beyond the end of life date.

Do I need a high or low pressure regulator? ›

A residential application will require a low pressure regulator which reduces the gas pressure to 6 ounces (10.5 inches water column). This low pressure regulator will be located on or near the main supply tank to the home, motor home, or camper.

What is the difference between gas regulators? ›

There are two basic types of gas pressure regulators: single-stage and two-stage. Single-stage pressure regulators reduce the cylinder pressure to the delivery or outlet pressure in one step. Two-stage pressure regulators reduce the cylinder pressure to a working level in two steps.

What PSI should a full CO2 tank be? ›

CO2 cylinder pressure is about 860 psi at normal room temperature. Typical CO2 cylinders store about 50 lbs. of liquid CO2.

How much air should be in a CO2 cartridge? ›

How much CO2 does one cartridge dispense? It depends on the size of the tire. For example, for a standard ATV tire, one 16 gram cartridge can fill a fully flat tire to 3 psi. For a standard dirt bike tire, one 16 gram cartridge can fill a fully flat tire to about 15 psi.

What pressure are CO2 cartridges at? ›

A CO2 cartridge is used to propel a small rocket cart. Compressed CO2, stored at a pressure of 41.2 MPa (abs) and a temperature of 20 °C, is expanded through a smoothly contoured converging nozzle with a throat area of 0.13 cm2.

How do I know if I have too much CO2 in my tank? ›

Signs that CO2 saturation is too high:
  1. Lowered Activity: Fish that are usually active hide or are less active, sluggish, signs of labored breathing, delayed reaction time in feeding.
  2. Position Change: Fish change their natural positions to favour positions closer to top of tank level or towards high flow areas.
Sep 30, 2019

Do you leave the CO2 on in a kegerator? ›

To be on the safe side, we always recommend shutting off the CO2 when you do not have a keg hooked up. Technically speaking, the components of a kegerator will not allow CO2 passed the coupler when it is not hooked to a keg.

How do you force carbonate a keg quickly? ›

Connect your keg to the CO2 and turn the regulator to 20 PSI. Place the keg on its side on the ground. Roll the keg back and forth in a swift but gentle motion for about 15-20 minutes or until you've reached your desired level of carbonation. Purge keg to serving pressure (10-12 PSI) and serve.

What is the best way to carbonate beer in a keg? ›

Most carbonation in kegs is done using pressurized CO2 from a gas cylinder, a process called force carbonation. The fastest results can be achieved when the beer in the keg is at a cold temperature. This will let the CO2 diffuse into the beer more efficiently and at a faster rate.

How long can I leave a CO2 cartridge? ›

A: You can keep the cartridge in the gun as long as you want. It might lose some air over time but if you tighten the screw hard enough it will retain air. But if you remove the cartridge while its still full you will lose all the co2.

How many times can you shoot CO2 cartridge? ›

HOW LONG DOES THE CO2 CARTRIDGE LAST? ​Once penetrated on the first trigger pull, the CO2 cartridge will last 24 hours or 21 shots.

Does it matter what CO2 cartridge you use? ›

The essential thing to remember is that your CO2 cartridge needs to match your inflator. Some inflators, like the Ultraflate, are best suited for non-threaded cartridges, while others, like the AirChuck, work best with threaded units.

Can CO2 cartridges get too hot? ›

This is not just the temperature the cylinder is exposed to at that point in time, but also the maximum temperature that the cylinder will be exposed to at any time in it's service. Catalina Cylinders, along with the CGA, recommends that CO2 cylinders not be used at temperatures exceeding 120 oF.

Are all CO2 cartridges the same pressure? ›

Cartridges come in different sizes – 12g, 16g or 25g. The smaller ones are designed for filling tires up to about 90 PSI. The larger ones are designed for filling tires up to 120+ PSI. This corresponds to lower pressure tubes such as clinchers (typically 90-120PSI) and tubular's (140-170 PSI) such as race wheels.


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