Best Inline Water Filter for Air Compressor : [Top 10] 2024

maximum operating pressure of air filter

It’s rare for a business to have clean air, and you’re no exception. You’ve probably noticed that your compressed air isn’t as clean as it should be. Because of the dirty air in your workplace, you may even be experiencing health problems.

This is why it’s important to maintain clean air while operating an air compressor, but it’s too challenging. You must deal with the best inline water filter for an air compressor to clean the air. But how do you find one?

To help you make an informed decision about which inline water filter will work effectively for your needs, we have created this helpful guide. It points out what makes some filters better than others. We hope you will find it useful!

NANPU Compressed Air Filter Regulators

TAILONZ Inline Compressed Air Filter

NEIKO Air Compressor Air Filter

Here Are the 10 Best Inline Water Filter for Air Compressor

It can be a tricky task to choose the right inline water filter for your air compressor. There’s no need to worry, the following are the top 10 air compressor intake filters:

1. NANPU Compressed Air Filter Regulators

NANPU is a reputable brand in the business sector. Their products are affordable, durable, and easy to install. This separator for air compressor filter for intake is no different.

The NANPU Compressed Air Filter Regulators is a durable and efficient inline water filter for air compressors.

This air compressor filter regulator can remove liquids and solids from the air, and it also offers self-relieving pressure regulators that adjust the outlet pressure to avoid an excessive build-up of heat.

Any compressor can be used with this air filter scalable solution. It is easy to install, meets safety regulations, and ensures pure compressed air. The product also features an aluminum body that is designed to last for a long time.

NANPU AW2000-02 includes an air coupler and plug kit, 2 x 1/4″ NPT fittings, 1x thread seal tape, metal bracket, polycarbonate bowl, 0-150 psi gauge.

In the 41-140℉ temperature range, it is best to be used with water and oil-free air. It has semi-auto drain technology, which ensures no water in your air system.

This affordable and efficient air compressor water filter is designed to ensure smooth operation in a wide range of demanding conditions.

Highlighted Features:

  • 2 x 1/4″ NPT fittings
  • 41-140℉ temperature range
  • Ensures pure compressed air
  • Max working pressure of 150 psi
  • Scalable, easy to install, and use
  • Aluminum bodies last for a long time

2. NEIKO Air Compressor Air Filter

The NEIKO air filter is an essential accessory for any person who uses air spray guns or other tools made by an air compressor. This separator for air compressor water filter can remove fine dust and debris from the air, ensuring you only get clean air.

NEIKO Air Compressor Air Filter removes water from compressed air which can eventually cause problems if not taken care of properly, slowing down efficiency and causing unwanted damage to the equipment.

The oil separator removes the oil from compressed air so that it stays inside instead of seeping through to achieve imperial maximum output.

On your airflow pressure for cleaner jobs with better execution thereby saving you money and inexpensive replacements. This unit comes with a large push button that makes it easy to drain the filter of debris and maintain optimal performance.

This accessory can handle a maximum of 150 PSI, fitting both 1/4″ NPT for any standard hose. This pneumatic tool has a simple design for quick, hassle-free use. Simply attach the filter to your equipment and turn it on.

For mechanics and craftsmen, the NEIKO air compressor filter is especially useful since aluminum increases air tool longevity.

Highlighted Features:

  • 150 PSI
  • 1/4″ NPT size
  • Easy to use design
  • Attaches quickly and effortlessly
  • Aluminum construction for extended durability

3. TAILONZ Inline Compressed Air Filter

TAILONZ offers a variety of accessories including this all-in-one inline compressed air filter, which is a reputable brand in the business sector. The air quality stays high while your tools and machines run smoothly.

The TAILONZ Inline Compressed Air Filter does more than clean the outsides of your air compressor. The filter removes moisture and particles from the compressed air, making it cleaner to work with for an extended period of time.

It filters out the dirt so you don’t have to worry about getting pulled into a wheel or belt. This inline water filter conserves energy by preventing any debris that could cause friction inside of your machine.

Maintenance is also much easier because there are fewer things that need to be cleaned regularly after installation. The air filter is easy to install, fits almost any size air compressor. It’s very affordable and beneficial to your devices.

The TAILONZ Inline Compressed Air Filter has a flow rate of 500L/minute which makes it more powerful than many other air filters on the market. You can trust this product because of its high quality that will never disappoint you.

TAILONZ AW2000-02 can cover maximum pressure of about 145 psi and temperature between 32 to 140°F.

With the high-pressure resistance, it can make sure more efficiency and longer time of working.

Gauge port size about 1/8“NPT and installation type is a suspension that can be easily mounted on any air compressor, air tool, or pneumatic components.

Highlighted Features:

  • 500L/minute flow rate
  • Suspension install type
  • Max pressure is 145 PSI
  • Gauge port size about 1/8“NPT
  • Temperature range between 32 to 140°F

4. Hromee Air Compressor Filter Regulator (HR4040)

Hromee is a brand that offers high quality products for home and professional use. This separator for air compressor filter regulator is suitable for almost any type of construction business or individual who deals with pneumatic tools on a daily basis.

Hromee Air Compressor Filter Regulator is a complete kit for water, oil, and air separators. It includes the brass filter element which filters particles and moisture to provide clean, dry air, pressure gauge.

You can adjust desired pressure by pulling up weather inlet pressure or flow fluctuations change.

The transparent filter cup helps to observe the volume of water and oil, the ball valve acts as an on/off switch and has a plastic-coated lever handle. On the dial scale, the units of measurement are PSI and MPA.

Maximum 150 PSI provides for use with air tools, sprayers, and pneumatic tools. Includes 2 x MNPT thread seal tape, and a bracket for secure mounting.

Hromee HR4040 serves both as an air filter and a regulator and is compact and effective in confined spaces. With proper setup, this powerful machine runs smoothly and efficiently without causing damage to the compressor.

Moreover, the long-lasting product is built to be corrosion resistant, ductile under high temperatures, and has minimal magnetic permeability.

Highlighted Features:

  • 2 x MNPT thread seal
  • Maximum pressure 150 PSI
  • Compact and effective in confined spaces
  • Transparent filter cup with ball valve
  • Suitable for air tools, sprayers, and pneumatic tools

5. Le Lematec Water Filter for Air Compressor

Le Lematec air filter is a heavy-duty filter for your air compressor. The pump in the filter allows you to re-clean it with ease without having to move the whole machine.

If you have an oil line, then this option is tailored for you. It has been tested from 90 psi up to 150 psi and comes in either solid brass or aluminum tubing.

Le Lematec Water Filter for Air Compressor is compatible with any type of hose and tool as long as there’s no hazardous material involved.

This air compressor filter dryer device, which is used to filter any moisture or oil that enters the system. When used with air tools, this Le Lematec water filter for the air compressor will provide top working conditions.

If you do not have an inline water filter on your air compressor, you would otherwise need to encounter costly repairs.

This unit also comes with a built-in drain valve option, which can easily be accessed by just pressing the push button drain valve. By doing this, you can clean the air compressor without having to move it.

Moreover, it can be used for plasma filters and other high-pressure tools up to 150 psi. If you have a hazardous material, then this can also work perfectly well.

Highlighted Features:

  • Built-in drain option
  • Ease of use
  • Works with hazardous materials
  • Aluminum or brass tubing, 150 PSI maximum

6. Mudder Store Water Oil Separator Filter

Mudder Store filter is a great way to have better airflow at your disposal. These air filters will allow fewer pollutants to go through the compressor which results in clearer and healthier work.

This Mudder Store Water Oil Separator Filter has an interface of standard 1/4 inch NPT, which makes it compatible with most pneumatic tools.

You will receive three of these filters, which is great because they can be easily and conveniently replaced when they become too dirty.

You’ll love the solid brass fittings that come with this device. They will effectively prevent rusting and corrosion, which will increase the lifespan of your pneumatic tool. Solid brass and aluminum valve materials provide durability and reliability.

Even though it has a polycarbonate housing, this filter won’t shatter, and it can endure a lot of pressure. With 90 psi of working pressure, this filter is made of high-quality components that were designed to last.

Last but not least, it’s easy to clean these filters because they come with a push-button release valve that drains most of the water inside so no scrubbing is required. Transparent color lets you see how dirty it is, but don’t worry, they are very easy to clean.

Highlighted Features:

  • Simple to clean
  • 90 PSI working pressure
  • 1/4″ NPT thread interface
  • 3 pcs of water oil separator filters
  • Transparent color lets you see how dirty it is

7. Le Lematec Air Compressor Filter

Le Lematec filter is an essential piece of equipment for your air tool, allowing them to work properly without damaging themselves. This filter primes the air compressor water separator, letting only suitable air flow through it.

The air tool filter element attaches easily with a screw-in installation and has a quick-release valve for easier cleaning. LE Lematec ‎AI303-C1 is made of heavy-duty aluminum and solid brass fittings for durability.

Its 1/4 inch male and female inlets make it compatible with most air compressors. Its low-profile design saves space in your workshop or garage. Furthermore, it prevents moisture from damaging the air tank of your compressor.

Compressors in the 90-150 PSI range can be used with a variety of air compressors. It attaches easily with a screw-in installation and has a quick-release valve for easier cleaning.

Le Lematec Air Compressor Filter has 3 all-in-one dirt, oil, and compressed air-water separators. You can use it without worrying about dirt, grime, dust, oil, water, or other contaminants. The inline air filter captures moisture, allowing your air compressors to work at their best.

There is a push-button drain valve that makes clean-up easy as it expels contaminants with the simple press of a button. The ergonomic design enables you to place this air-water separator virtually anywhere in your workshop or garage.

Highlighted Features:

  • Screw-in installation
  • 3-in-1 dirt, oil, and water separator filter
  • Push-button drain valve for clean-up
  • Compatible with most air compressors
  • Ergonomic design to save space anywhere in your facility

8. THB 1/2 Air Compressor Water Separator

The THB air filter is designed to trap moisture from the compressed air before it damages your machine or makes you have to wash it more frequently. Your separator for the air compressor is protected from oil, water, and dust particles with this filter.

THB 1/2 Air Compressor Water Separator has a 5-ounce polycarbonate bowl with a metal bowl guard. It filters out 95% of the moisture and debris, so you won’t have to worry about your machine breaking down due to moisture and dirt.

With an input max pressure of 175 psi input and an output max pressure of 145 psi, this separator filter element has a flow rate of 106 cubic feet per minute.

When the bowl is under pressure, the air compressor water separator moisture filter holds moisture until you manually discharge it.

‎Total 14.9 ounces weight of this product and dimensions are 7.32 x 3.27 x 3.23 inches‎ that can easily fit in your hand. As soon as pressure is applied, it closes again until you manually drain it.

An aluminum body brings rustproof features to the product. This can be used in various applications like compressors, blowers, etc. As an added benefit, it can also increase the frequency of filter element cleanings.

Highlighted Features:

  • Max input of 175 psi
  • Max output of 145 psi
  • Dimensions are 7.32 x 3.27 x 3.23 inches
  • The flow rate of 106 cubic feet per minute
  • Anti-rust feature as it is made of aluminum

9. PneumaticPlus Air Compressor Water Filter

The PneumaticPlus air filter delivers clean air to your pneumatic tools, extending their life. You can clean the filter much more often with fast and easy drainage, keeping your pneumatic tools cleaner for longer.

PneumaticPlus Air Compressor Water Filter activated inline air filter works to prevent rust, corrosion and pitting of the tool surfaces.

This filter element has no moving parts and does not require any adjustments for operation. Simply turn the knob counterclockwise to release pressure from the control spring before shutting off the airflow from your compressor.

PneumaticPlus SAW2000M-N02BG comes in gray color with a gauge and bracket. It can operate at 150 PSI and deliver 250 PSI. Its aluminum die-cast material ensures it is strong enough to handle harsh air.

A metal bowl with sight can be rotated up to 180 degrees after it has been tightened so as to provide proper visibility.

With a 1/4″ NPT filter element, air compressors can be mounted in a variety of positions, reducing cleaning times.

Additionally, you should be careful when turning the knob and air filter bowl of the regulator, as it may damage internal components. Thus, you can work longer in your garage or home without worrying about cleaning time.

Highlighted Features:

  • A 150 PSI pump can deliver 250 PSI
  • Aluminum die-cast material
  • Control knob with a control spring
  • 180° rotatable metal bowl with sight
  • Strong and sturdy enough to handle harsh air

10. Jewboer Water Oil Separator Filter

The Jewboer Filter is the most useful filter you can get for your air compressor spray paint gun. This filter will prevent oil and moisture from clogging the tip of your pneumatic tool.

Jewboer Water Oil Separator Filter can make cleaning your machine easier and more efficient, as well as prolong the life of the machine.

There are many benefits of having this type of filter, like quick disconnects, protection against water vapor/ oil vapor, and particle-free air to extend the tool lifespan for painting or any other air tools.

With a 1/4″ NPT inlet and outlet design, it’s easy to connect air tools with airlines. Water and oil filters capture water and oil away from the spray guns to keep them clean. You can use high-pressure water to clear out dirt in the filter if necessary.

‎5.6 ounces provides you comfortable touch feeling, with ergonomically contoured design ‎4.33 x 4.17 x 1.81 inches, fits with any air compressor guns or hoses with a maximum pressure of 150 PSI.

It is impact-resistant and transparent PC/Zinc alloy/copper mesh strainer design with built-in release valve. 

Highlighted Features:

  • Easy to install
  • Lightweight design 5.6 ounces
  • 1/4″ NPT inlet and outlet design
  • Fits any air compressor guns up to 150 PSI

These are our top 10 picks for the air compressor air filter. We provide you with a good, clear buying guide to help you pick your ideal filter.

How to Choose the Best Air Compressor Filter

air line compressed air system

If you’re looking for an air filter compressor, it’s important to know what features are best suited for your needs.

The following are the most important things to consider when purchasing an inline water filter for an air compressor:


The material in the filter will determine if it can purify water vapor in the air. If you want to remove water vapors from the air, your filter needs to be capable of doing so.

When you choose a filter with a metal mesh or aluminum material, you’ll get a more durable product. Plastic air filters are good if you’re on a budget.

Compressor Types

Make sure that your air filter is compatible with the type of compressor you’re using. If it’s a pneumatic or portable one, then most air filters will work just fine.

For larger, stationary compressors, choose a closer filter to the compressor itself so you will not have to worry about long hoses.

Micron Rating

The micron rating is an important factor that can determine if the filter will get rid of water vapors. If you want to remove liquid from the air, your filter needs to be capable of doing so.

That’s why when choosing a filter, you need to consider the micron rating of the filter. The lower the micron rating, the better it can catch water particles.

Flow Capacity

manual drain system air compressors

Another important thing to consider is the flow capacity of your filter. If you’re using an air compressor that’s powering multiple air tools, then the flow capacity will determine how fast it fills up.

The higher flow rate is better. Most portable or stationary compressors will be able to power one large tool at a time.

Air Inlet and Outlet

The size and shape of the air inlet and outlet are important. Make sure you choose a filter with an easy fit for your compressor.

Quick-release couplings will make it easier to connect and disconnect the combine.

Drain Type

If you want to prolong the life of your filter, then you’ll need one that includes a drain. The drain is for draining out the water in the filter so it does not develop mold or mildew.

There are 3 common types of drain: manual, semi-automatic, and automatic. Each has its own benefits.

Load Capacity

You might be using a portable or smaller compressor, but if you have multiple air tools powered by the compressor, then it’s important to choose one that can handle the load capacity.

If you’re going for a pneumatic one, go with a more powerful filter. If you’re planning to use larger air tools with your compressor, then your load capacity should be considered.


air compressor moisture separator

A durable filter is a great investment. Choose one made from heavy-duty material. Mesh air filters tend to be more durable while plastic tends to be less so.


The size of the filter is important to consider because you’ll want one that’s easy to carry or store. Portable compressors are typically smaller, so your filter should be just as portable.

Frequency of Use

If you have multiple air tools running at once, then your filter needs to be up for the task. Choose one that can support high-end, high-volume air compression. The more you use your compressor, the better quality filter you should have.

If you follow these steps, you’ll find the compressor air filter that will suit your individual needs.

Types of Air Compressor

Compressors can be categorized into four main types:

i) Rotary Screw Air Compressor

This type of air compressor is ideal for those who need a good source of air pressure. It operates on two meshed motors, which are driven by a single motor and meshing helical screws.

ii) Reciprocating Air Compressor

Reciprocating air compressors are similar to the rotary screw compressor. It works by having a piston that moves up and down in cylinders with the crankshaft, connecting rods, and flywheel. This reciprocating action compresses the incoming airflow.

iii) Axial Air Compressor

This type of compressor is perfect for those who want a more compact unit. It operates on the same principle as the gas compressor, except it takes up less space because there are fewer moving parts that take up space.

iv) Centrifugal Air Compressor

This type of compressor is ideal for those who need a powerful tool. It can handle higher pressure and works by using a rotating impeller that absorbs the air from its surroundings.

In addition to these four types, there are other compressors that use a combination of two or more of these methods to create a hybrid compressor.

Types of Air Compressor Inline Filter

automatic drain valve air filter

There are 6 types of air compressor inline filters:

i) Particulate Filters

ii) Activated Carbon Filters

iii) Coalescing Filters

iv) Cold Coalescing Filters

v) Compressed Intake Filters

vi) High-Efficiency Filters

How Does a Compressed Air Water Separator Work?

air filter compressor tank

To separate water from compressed air, you need an air compressor water separator and then pass it through a de-watering unit.

The process starts when you should filter out dust particles before compressing. After that, the suspended liquid droplets in the compressor should be separated by centrifugal force and then turned into liquid form (vapor converted back to liquid).

The compressed air should then pass through a coalescing filter, which removes any remaining trace of water droplets.

Finally, the air should go back into your air line filter after passing through an activated carbon filter for removing odor and disinfecting.

How Does a Water Trap for an Air Compressor Work?

clean and dry air filter

A water trap for an air compressor is a device that provides protection against water contamination. This device can also prevent freezing and corrosion.

It’s important to use such a device as it protects the air supplied to other equipment by removing moisture from the compressed air system.

This air filter unit separates moisture, oil, and oil vapor from compressed air by means of a cooling coil and an internal separator tank.


Here are the most common questions that may come to mind while looking at the above article:

1. Where to Install Water Separator on Air Compressor?

The air compressor water separator should be installed between the pump intake and the storage tank. This ensures that the water is being separated from the air as it enters the tank.

As a result, there is no contamination between the environment and the cooling of the machine, which prolongs its life.

2. How to Keep Water Out of Air Compressor Lines?

There are many methods that you can use to keep water out of your air compressor.

First, always make sure that there are no leaks in the air compressor. Second, make sure that you purchase a model that lets you drain the water after every use.

Third, purchase air compressor water separators for your air compressor to avoid any problems in the future and ensure proper polishing and lubrication of the machine.

3. How to Drain Water from Air Compressor?

water separator compressor and air tools

To drain the water from your air compressor, make sure that you start with draining off the water reservoirs.

You can do this on a regular basis to prevent any future problems. Don’t forget, before draining it completely make sure to remove all four plugs, and after you are done removing them put them back on again.

The air compressor water separators will have to be emptied after every use.

4. How to Remove Moisture from Compressed Air?

To remove moisture in compressed air can be done in the following ways:

  • The tank is being drained.
  • A water trap and filter regulator is being used.
  • A refrigerated air dryer is being used.
  • A desiccant air dryer is being used.
  • A deliquescent air dryer is being used.
  • Air is dried through a piping system.
  • The cooling is done in a storage tank.
  • By absorbing moisture from the air.

5. Do I Need a Regulator on My Air Compressor?

The answer to this question is YES. If you are using an air compressor, you will need a regulator to regulate the air pressure.

The benefit of having one is that it will protect your air tools from any overpressure. A regulator can be attached to the main valve of an air compressor or added on later at any time.

This is definitely something that should never be done without because even a little bit of overpressure can cause irreparable damage to the machine.

6. Why Drain Water from Compressed Air Tanks?

It is important to drain water from a compressed air tank because it helps keep the machine running smoothly and prevents contamination.

If you fail to separate water from your machine, it will freeze. This can lead to damaged air filters, broken air tools, and valves. This ultimately leads to more downtime for repairs.

water separator air compressor tools


You should always have the best inline water filter for an air compressor, which will make the process of cleaning the machine faster and more efficient.

There are many benefits of having a water filter for your air compressor, including not only savings on cleaning time but also prolonging the life of your machine.

We hope this article was helpful to you in choosing the prime inline water filter for your air compressor. Have a good day!​

Best Inline Water Filter for Air Compressor : [Top 10] 2024

2 thoughts on “Best Inline Water Filter for Air Compressor : [Top 10] 2024

  1. #5 is a nice little filter. Works well as an add-on to your main filter. I wouldn’t use this as your only filter, the small size makes it susceptible to moisture. It’s simple to push a button and remove all the moisturizer and keep it from my tools.

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