Best picks

9 Best Industrial Air Compressors (November 2026)

Updated on · By the Top Cool DIY team

The best industrial air compressors include the VEVOR 13-Gallon Air Compressor for mixed workshop tasks, the Metabo HPT Portable Pancake Air Compressor for multiple nailers, and the California Air Tools 8010A 1.0 HP Ultra for quiet indoor workshops.

On this page (6 sections)
  1. Which industrial air compressor is best for workshop demand?
  2. How did we choose the best industrial air compressor picks?
  3. What size industrial air compressor tank do you need?
  4. Oil-free or oil-lubricated industrial air compressor?
  5. What should you check before installing an industrial air compressor?
  6. Which is the best industrial air compressor for you?

The best industrial air compressor for most workshops is the VEVOR 13-Gallon Air Compressor, which combines a 2 HP motor, 4.6 CFM at 90 PSI and a 125 PSI maximum. Choose the Industrial Air model for its 30-gallon tank and belt-driven pump, or California Air Tools when lower noise matters more.

We compared tank capacity, airflow, pressure, pump design, noise, portability and maintenance needs. These picks cover mixed workshop tasks, pneumatic nailers, spray work, inflation and sustained air demand.

If you need a compressor for professional jobs rather than a dedicated industrial shop, compare our Best Air Compressor For Professionals guide. For larger stationary setups, see the best stationary air compressors before choosing a tank and power configuration.

Our score weighs specs, features and buyer feedback against what you're shopping for.

Our picks at a glance

  1. 1 VEVOR 13-Gallon Air Compressor
    Best for mixed workshop tasks

    VEVOR 13-Gallon Air Compressor

    9.6/10 our score

    See it on Amazon
  2. 2 Metabo HPT Portable Pancake Air Compressor
    Best for multiple nailers

    Metabo HPT Portable Pancake Air Compressor

    9.5/10 our score

    See it on Amazon
  3. 3 California Air Tools 8010A 1.0 HP Ultra
    Best for quiet indoor workshops

    California Air Tools 8010A 1.0 HP Ultra

    9.3/10 our score

    See it on Amazon
  1. 4ECOMAX Air Compressor 6 Gallon 150 PSI

    ECOMAX Air Compressor 6 Gallon 150 PSI

    Best for included accessories
    Check it
  2. 5California Air Tools 20020 2.0 HP Ultra

    California Air Tools 20020 2.0 HP Ultra

    Best for quieter large-tank work
    Check it
  3. 6RyanTek 15-Gallon Air Compressor

    RyanTek 15-Gallon Air Compressor

    Best for compact vertical storage
    Check it
  4. 7Industrial Air ILA1883054 30-Gallon Belt Driven Air CompressorCheck it
  5. 8VELPAX Ultra Quiet Air Compressor

    VELPAX Ultra Quiet Air Compressor

    Best for quiet portable setup
    Check it
  6. 9Klutch 20-Gallon Air Compressor

    Klutch 20-Gallon Air Compressor

    Best for high-pressure shop work
    Check it

Which industrial air compressor is best for workshop demand?

The VEVOR 13-Gallon Air Compressor is the best overall match for mixed workshop demand because it balances airflow, tank size, portability and oil-free maintenance. The Industrial Air model is better when stored air and a belt-driven pump matter more than weight or noise.

Best industrial air compressor for mixed tasks

1

VEVOR 13-Gallon Air Compressor: Best for mixed workshop tasks

VEVOR 13-Gallon Air Compressor, industrial air compressors
9.6/10Our score
  • 2 HP motor
  • 4.6 CFM at 90 PSI
  • 125 PSI maximum
  • 66 dB oil-free operation

The VEVOR combines a 13-gallon tank, 2 HP motor and 4.6 CFM at 90 PSI for general workshop air demand. Its oil-free design and wheels make it easier to place and maintain.

See it on Amazon

Pros

  • Strong score for mixed uses
  • Oil-free pump
  • Wheels and foot pads included

Cons

  • Smaller tank than the 20- and 30-gallon picks
  • Maximum pressure is 125 PSI

The VEVOR leads this roundup with a 2 HP motor, 4.6 CFM at 90 PSI and 125 PSI maximum. That combination gives it enough stated airflow for a wide range of workshop tasks, including inflation, woodworking, auto repair and spray painting.

Its 13-gallon tank sits between compact pancake compressors and larger shop units. That makes it easier to move than a 20- or 30-gallon compressor while offering more stored air than a small job-site model.

The oil-free pump keeps routine maintenance simpler. VEVOR also states that the compressor operates at 66 dB and reaches working pressure quickly, while the included wheels help move the 71 lb unit around a shop.

Choose it when one compressor needs to cover several tasks. If your work centers on tools that run continuously, compare its airflow and tank size with the larger California Air Tools and Industrial Air picks.

You can also compare air compressors for continuous use.

VEVOR 13-Gallon Air CompressorCheck it on Amazon

Best industrial air compressor for multiple nailers

2

Metabo HPT Portable Pancake Air Compressor: Best for multiple nailers

Metabo HPT Portable Pancake Air Compressor, industrial air compressors
9.5/10Our score
  • 6-gallon tank
  • 4 CFM at 90 PSI
  • 200 PSI maximum
  • 41 lb portable design

Metabo HPT's 6-gallon pancake compressor is built around job-site nailing. It can run multiple framing, roofing, siding, finish or brad nailers according to the brand's stated use cases.

See it on Amazon

Pros

  • High pressure for its size
  • Lightweight design
  • Supports several nailer combinations

Cons

  • Small tank for continuous high-airflow tools
  • Louder than the quietest picks

Metabo HPT's THE TANK is the best fit for framing, roofing, siding, finish and brad nailers. Its 4 CFM at 90 PSI and 200 PSI maximum support the brand's stated combinations of multiple nailers, including up to 2 framing nailers or 5 brad nailers.

The 6-gallon pancake tank keeps the unit compact, and its 41 lb weight makes it easier to carry between work areas. That portability matters on a job site where the compressor may need to move several times a day.

The flat pancake shape also helps it sit low and stable on the floor while tools are connected. A low profile can make it easier to work around on a crowded site without taking up vertical space.

This model is less suited to air-hungry tools that run without breaks. Choose it for nailing crews and portable work rather than a fixed workshop that needs long periods of spray or sanding operation.

For a larger tank and more stored air, compare the best 80 gallon air compressor options before committing to a job-site format.

Metabo HPT Portable Pancake Air CompressorCheck it on Amazon

Best industrial air compressor for quiet indoor work

3

California Air Tools 8010A 1.0 HP Ultra: Best for quiet indoor workshops

California Air Tools 8010A 1.0 HP Ultra, industrial air compressors
9.3/10Our score
  • 8-gallon aluminum tank
  • 2.2 CFM at 90 PSI
  • 60 dB operation
  • Oil-free dual-piston pump

The California Air Tools 8010A favors low noise and easy movement over high sustained airflow. Its aluminum tank, wheels and 37.3 lb weight suit indoor work areas where sound matters.

See it on Amazon

Pros

  • Quietest pick here
  • Lightweight and wheeled
  • Oil-free pump

Cons

  • Lowest airflow among the larger workshop picks
  • 1 HP motor

The California Air Tools 8010A is the quietest pick here at 60 dB. Its 8-gallon aluminum tank, oil-free dual-piston pump and 2.2 CFM at 90 PSI fit indoor workshops where compressor noise can interfere with conversation or detailed work.

At 37.3 lb, it is also one of the easiest units to reposition. The wheel kit helps with movement, while the 1 HP motor keeps the design smaller than the high-capacity models.

The aluminum tank helps keep weight down compared with a steel tank of similar size. That can make a practical difference when you carry it up steps or load it into a vehicle for a small job.

The tradeoff is airflow. It is a better fit for intermittent inflation, brad nailing and light shop tasks than for tools that require high CFM for long periods.

Choose this model when sound and portability are your main limits. If you need more airflow while keeping noise under control, the California Air Tools 20020 offers a 20-gallon tank and 5.3 CFM at 90 PSI.

California Air Tools 8010A 1.0 HP UltraCheck it on Amazon

Best industrial air compressor with accessories included

4

ECOMAX Air Compressor 6 Gallon 150 PSI: Best for included accessories

ECOMAX Air Compressor 6 Gallon 150 PSI, industrial air compressors
9.3/10Our score
  • 6-gallon tank
  • 150 PSI maximum
  • Oil-free pump
  • 25 ft hose and 10-piece kit

ECOMAX includes a hose, tire gauge, blow gun, couplers, nozzle and other accessories. Its compact 6-gallon format fits inflation, brad nailing, spraying and light workshop tasks.

See it on Amazon

Pros

  • Accessory kit included
  • 150 PSI maximum
  • 34.17 lb portable design

Cons

  • Small tank for sustained industrial tools
  • 75 dB noise level

The ECOMAX 6-gallon compressor stands out because it includes a 25 ft PVC hose, tire gauge, blow gun, nozzle, couplers, thread seal tape and other accessories. That package helps you start inflation, blow cleaning and light pneumatic work without gathering every connection separately.

Its oil-free pump, 150 PSI maximum and 3 CFM at 90 PSI suit portable workshop tasks. The flip-up handle and 34.17 lb weight also make it easy to carry and store.

Dual gauges help you watch tank pressure and tool pressure at the same time. That setup makes it simpler to set the regulator for a nailer or spray tool without guessing from a single reading.

The included hose length suits work close to the compressor, but longer runs may need an additional hose. Check the 1/4 inch connections against your tools so everything fits without extra adapters.

The 6-gallon tank limits how long it can support high-airflow tools before recovery. Treat it as a compact utility compressor for brad nailers, inflation, cleaning and occasional spraying rather than a full replacement for a large shop unit.

ECOMAX Air Compressor 6 Gallon 150 PSICheck it on Amazon

Best industrial air compressor for a quieter large tank

5

California Air Tools 20020 2.0 HP Ultra: Best for quieter large-tank work

California Air Tools 20020 2.0 HP Ultra, industrial air compressors
9.1/10Our score
  • 20-gallon steel tank
  • 5.3 CFM at 90 PSI
  • 70 dB operation
  • 2 HP oil-free motor

The California Air Tools 20020 adds a 20-gallon tank and 5.3 CFM at 90 PSI for higher-demand shop tools. Its 2 HP oil-free motor and 110-volt operation keep the setup practical for many workspaces.

See it on Amazon

Pros

  • Large tank with strong airflow
  • Oil-free pump
  • 70 dB noise level

Cons

  • Heavy at 134 lb
  • 125 PSI maximum

The California Air Tools 20020 is the strongest quiet large-tank option in this group. Its 20-gallon steel tank, 5.3 CFM at 90 PSI and 2 HP motor give it more capacity for shop tools than the smaller quiet models.

The oil-free dual-piston pump reduces routine oil maintenance, and the stated 70 dB noise level is lower than several similarly sized compressors. It runs on a 110-volt outlet and includes wheels for moving the 134 lb unit around a shop.

The steel tank adds durability for regular workshop use, but it also adds weight. Plan for a firm, level floor and a clear path before you try to move it into place.

The weight and 45 in height require careful placement. Measure doorways, storage space and the route to the work area before choosing it.

Pick it when you need meaningful tank capacity without moving to a belt-driven oil-lubricated design. For a dedicated large stationary system, compare it with the best 5 HP 60 gallon air compressor options.

California Air Tools 20020 2.0 HP UltraCheck it on Amazon

Best industrial air compressor for compact vertical storage

6

RyanTek 15-Gallon Air Compressor: Best for compact vertical storage

RyanTek 15-Gallon Air Compressor, industrial air compressors
8.7/10Our score
  • 15-gallon tank
  • 4.5 CFM at 90 PSI
  • 66 dB operation
  • Oil-free twin-cylinder pump

RyanTek pairs a vertical 15-gallon tank with a 2 HP motor and 4.5 CFM at 90 PSI. The compact footprint, wheels and handle help when floor space is limited.

See it on Amazon

Pros

  • Good airflow for the tank size
  • Vertical space-saving design
  • Oil-free operation

Cons

  • 125 PSI maximum
  • Brand data gives conflicting pressure figures, so confirm before ordering

RyanTek gives you a 15-gallon vertical tank, 4.5 CFM at 90 PSI and a 2 HP motor in a footprint designed to use vertical space. That layout can help in a narrow garage or workshop where floor area is limited.

The oil-free twin-cylinder pump is stated to operate at 66 dB. Wheels, a handle and upward-facing controls add practical value when you move the unit or need to read the gauges from above.

The vertical design also keeps hoses and controls closer together at the top. That can make daily setup faster when you work in a tight corner or against a wall.

There is conflicting pressure information in the supplied product details. The title and specifications state 125 PSI, while another description mentions 145 PSI, so confirm the exact figure before ordering.

Choose RyanTek when tank capacity and a vertical layout matter more than the smallest possible footprint.

RyanTek 15-Gallon Air CompressorCheck it on Amazon

Best industrial air compressor for a large tank

7

Industrial Air ILA1883054 30-Gallon Belt Driven Air Compressor: Best for large tank capacity

Industrial Air ILA1883054 30-Gallon Belt Driven Air Compressor, industrial air compressors
8.4/10Our score
  • 30-gallon tank
  • 7 CFM airflow
  • 155 PSI maximum
  • Belt-driven oil-lubricated pump

Industrial Air gives you the largest tank in this roundup, with a cast-iron twin-cylinder pump and dual-voltage motor. It suits buyers who value stored air and higher pressure over low noise.

See it on Amazon

Pros

  • Largest tank here
  • 155 PSI maximum
  • 120/240-volt motor

Cons

  • 190 lb weight
  • Oil-lubricated pump requires more maintenance

The Industrial Air ILA1883054 is the large-capacity choice, with a 30-gallon vertical tank, 7 CFM airflow and 155 PSI maximum. Its cast-iron twin-cylinder, belt-driven pump is oil lubricated and built around a heavy-duty induction motor.

The dual-voltage motor is wired for 120 volts and can be converted for 240-volt use. That gives you more flexibility when planning a workshop circuit, but electrical work should follow local requirements and the manufacturer's instructions.

The belt-driven layout separates the pump and motor, which can suit longer service intervals and easier component replacement. It also fits the traditional shop approach that many experienced users prefer for stationary work.

This compressor weighs 190 lb, so its pneumatic tires help with movement but do not make it a lightweight portable unit. The oil-lubricated pump also needs more care than the oil-free picks.

Choose it for stored air, higher pressure and a traditional shop-compressor design. It is the better match for a fixed workshop than a small indoor work area where noise and frequent repositioning matter.

Industrial Air ILA1883054 30-Gallon Belt Driven Air CompressorCheck it on Amazon

Best industrial air compressor for a quiet portable setup

8

VELPAX Ultra Quiet Air Compressor: Best for quiet portable setup

VELPAX Ultra Quiet Air Compressor, industrial air compressors
8.1/10Our score
  • 2 HP motor
  • 4.2 CFM airflow
  • 115 PSI maximum
  • Oil-free portable design

VELPAX offers a portable oil-free compressor with a 2 HP motor, 4.2 CFM airflow and safety features such as overload protection. Its stated noise figures differ between the title and specifications, so verify before buying.

See it on Amazon

Pros

  • Oil-free design
  • Safety valve and overload protection
  • Portable handle

Cons

  • Conflicting noise information
  • 115 PSI maximum

VELPAX combines a 2 HP motor, 4.2 CFM airflow and oil-free operation in a portable design with a handle, pressure gauge and condensate drain. It also includes overload protection, a cooling fan and a safety valve.

The stated maximum working pressure is 115 PSI. That is lower than the other picks, so it makes more sense for inflation, nailing, woodworking and light spray work than for applications where higher pressure is central.

A condensate drain is useful because moisture can build up in the tank during regular use. Draining it as directed helps protect the tank and keeps the air cleaner for tools.

The product information gives different noise figures. Its title describes about 60 dB, while the specifications state 75 dB, so confirm the expected operating noise before placing it in a shared room.

Choose it when oil-free portability and basic safety features matter most, but verify the noise and tank details for your setup.

VELPAX Ultra Quiet Air CompressorCheck it on Amazon

Best industrial air compressor for high-pressure shop work

9

Klutch 20-Gallon Air Compressor: Best for high-pressure shop work

Klutch 20-Gallon Air Compressor, industrial air compressors
7.9/10Our score
  • 20-gallon tank
  • 175 PSI maximum
  • 2 HP motor
  • Oil-free pump with thermal overload protection

Klutch combines a 20-gallon tank with a 175 PSI maximum and a 2 HP oil-free motor. Large wheels, rubber feet and thermal overload protection support shop use where pressure and mobility both matter.

See it on Amazon

Pros

  • Highest maximum pressure here
  • 20-gallon tank
  • Oil-free pump

Cons

  • 80 dB noise level
  • Heavier than compact portable picks

Klutch is the high-pressure pick, with a 175 PSI maximum, 20-gallon tank and 2 HP motor. Its oil-free pump reduces routine maintenance, while thermal overload protection is intended to help prevent overheating during prolonged use.

The stated airflow is 4.2 SCFM at 90 PSI, which places it below the largest-airflow Industrial Air model but alongside several mid-size choices. Large rubber wheels and an ergonomic handle make the 90 lb compressor easier to move around a shop.

The 20-gallon tank gives more reserve air than the compact 6-gallon models. That reserve can reduce how often the motor cycles during intermittent nailing, inflation and spray tasks.

At 80 dB, it is not the quietest option. Rubber foot stabilizers help reduce vibration, but you should still place it where operating noise will not disrupt nearby work.

Pick Klutch when high maximum pressure matters more than low noise. For a quieter 20-gallon option, compare it with the California Air Tools 20020.

Klutch 20-Gallon Air CompressorCheck it on Amazon

How did we choose the best industrial air compressor picks?

We gave the most weight to airflow at 90 PSI, tank capacity, pressure range and the type of work each compressor is designed to support. Those details show how a unit may fit sustained workshop demand better than horsepower alone.

For higher-output options, compare 20 CFM air compressors.

We also compared pump design and maintenance. Oil-free models reduce oil-related service, while the Industrial Air belt-driven pump offers a traditional oil-lubricated design with a cast-iron twin-cylinder pump.

Noise and portability matter when a compressor shares space with people or must move between work areas. The quietest stated figure here is 60 dB, while the largest unit weighs 190 lb.

Before buying, check the tool's required CFM, the compressor's CFM at the same pressure, the available electrical circuit and the space needed around the tank. Our guide to How Are Air Compressors Rated? explains why horsepower, PSI and CFM should be read together.

What size industrial air compressor tank do you need?

A 6-gallon tank suits portable nailing and intermittent small-tool use, while a 13- to 20-gallon tank gives more stored air for mixed workshop work. A 30-gallon tank is a better fit when you want more reserve air and have room for a heavier machine.

Tank size affects how long you can work before the pump has to catch up. A bigger tank can smooth out bursts of use, but it does not create airflow on its own.

Think about how your tools actually run through a task. A nailer fires in short bursts, while a spray gun or sander may draw air steadily for minutes at a time.

Tank size does not determine the entire output. A large tank paired with low airflow can still struggle with a tool that needs continuous CFM, so compare the tool requirement with the compressor's airflow at the working pressure.

Weight and footprint grow with tank size, so plan the space before you buy. A 20- or 30-gallon unit may need a fixed spot, while a pancake model can move between rooms or job sites.

For short jobs, a smaller tank can be easier to carry and store. For a full day in the shop, extra stored air can make the work feel less interrupted.

For a more general professional comparison, see our guide to the Best Air Compressor Rated By Mechanics. It can help narrow the choice when your work includes several pneumatic tools.

Oil-free or oil-lubricated industrial air compressor?

Oil-free compressors are easier to maintain and can suit portable workshops, indoor projects and users who want less routine service. The VEVOR, California Air Tools, RyanTek, VELPAX, Klutch, ECOMAX and Metabo HPT picks use oil-free designs.

With no oil to check or change, an oil-free pump can also suit users who prefer a simpler routine. It can be a practical choice for a garage, shared workspace or anyone who stores the compressor between jobs.

Oil-free does not mean care-free. You still need to drain moisture, keep filters clean and follow the manual for the pump and motor.

An oil-lubricated belt-driven compressor can make sense when you value a cast-iron pump, a large tank and traditional shop serviceability. Industrial Air is the only oil-lubricated option in this group, so it needs a different maintenance routine.

Oil lubrication is part of how that pump is designed to run. That means checking oil level and following the service guidance in the manual as part of ownership.

The trade-off is more routine attention than an oil-free model. For some buyers, that extra care is worth it for the larger tank and belt-driven design.

Neither design automatically fits every industrial application. Match the pump, airflow, tank and service needs to the tools you will run and the time you expect the compressor to operate.

Consider where the compressor will live and how often it will move. A portable oil-free unit may suit a changing workspace, while a fixed belt-driven unit may suit a dedicated shop.

Also consider air quality for your tools. Some spray and finishing work benefits from clean, dry air, so follow the drainage and filtration guidance for the model you choose.

In short, pick the pump type that matches your routine, not just the headline specs. The right choice is the one you can maintain and use without friction.

What should you check before installing an industrial air compressor?

Check the compressor's weight, tank dimensions, electrical requirements, noise level and clearance before delivery. A large unit may fit the planned floor area but still be difficult to move through a doorway or position near a wall.

Measure the route from delivery to the final spot, including turns and thresholds. A wheeled unit still needs room to tilt, roll and stand upright in its workspace.

Leave space around the tank for controls, drainage and airflow. Crowding a compressor against clutter can make routine checks harder and reduce ventilation.

Use the stated voltage and current information to plan the circuit. The California Air Tools 20020 is designed for a 110-volt outlet, while the Industrial Air motor can use 120 or 240 volts after conversion.

Make sure the outlet and circuit match the manual before first use. Avoid stretching cords or sharing a circuit in a way that could trip or overload it.

Drain moisture as directed, keep air filters clear where applicable and follow the manual for pressure, hose and electrical setup. Never exceed the rated pressure of the compressor, hose or air tool.

Set the regulator to the tool's working pressure, not the tank maximum. Most tools specify the pressure they need, and running higher does not improve the result.

Check hose fittings and couplers for a secure match before work begins. A poor connection can leak air, waste power and make pressure readings unreliable.

Keep the manual in an easy place so service steps stay handy. A few minutes of setup care can prevent avoidable problems later.

Which is the best industrial air compressor for you?

Choose the VEVOR 13-Gallon Air Compressor for the best balance of airflow, tank size, portability and oil-free use. Choose Metabo HPT for multiple nailers, California Air Tools 8010A for the lowest stated noise, or Industrial Air for a 30-gallon belt-driven setup.

If you need a larger quiet tank, choose California Air Tools 20020. If high maximum pressure is your priority, Klutch offers 175 PSI.

For a compact vertical layout, RyanTek is worth a look. For a ready-to-use accessory package, ECOMAX covers the basics in the box.

For a portable oil-free setup with safety features, VELPAX is another option to consider. Just verify its stated noise level before using it in a shared indoor space.

Always match CFM at working pressure to your most demanding tool before choosing by horsepower or tank size alone.

Then check weight, noise and maintenance so the compressor fits your space and routine. The best pick is the one that keeps your tools running without making the workshop harder to use.

Our top 3 picks at a glance

  1. 1 VEVOR 13-Gallon Air Compressor
    Best for mixed workshop tasks

    VEVOR 13-Gallon Air Compressor

    9.6/10 our score

    See it on Amazon
  2. 2 Metabo HPT Portable Pancake Air Compressor
    Best for multiple nailers

    Metabo HPT Portable Pancake Air Compressor

    9.5/10 our score

    See it on Amazon
  3. 3 California Air Tools 8010A 1.0 HP Ultra
    Best for quiet indoor workshops

    California Air Tools 8010A 1.0 HP Ultra

    9.3/10 our score

    See it on Amazon

Frequently asked questions

What is the best industrial air compressor for a small workshop?

The VEVOR 13-Gallon Air Compressor is the strongest small-workshop choice here because it combines a 2 HP motor, 4.6 CFM at 90 PSI and a 125 PSI maximum. Its oil-free pump and wheels also simplify placement and routine use when you need one compressor for several tasks.

How much CFM does an industrial air compressor need?

Choose airflow from the tool that uses the most air, then leave room for recovery. The picks here range from 2.2 to 7 CFM, so a quiet trim compressor may suit intermittent work while a 20- or 30-gallon model better fits tools that run for longer periods.

Is a belt-driven compressor better for industrial use?

A belt-driven design can suit industrial use when you want a cast-iron pump, a larger tank and serviceable oil-lubricated operation. The Industrial Air ILA1883054 uses a belt-driven twin-cylinder pump and a 30-gallon tank, but it is heavier and needs more maintenance than oil-free models.

What tank size is best for industrial air tools?

A 20- to 30-gallon tank gives more stored air for demanding workshop tools than a 6-gallon pancake tank. Tank size does not replace CFM, though.

Match the compressor's airflow to the tool, then choose the largest tank your space, power circuit and budget can support.