Finding the best inline air filter for air compressor suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.

Best inline air filter for air compressor

Product Features Editor's score Go to site
Motor Guard M-30 1/4 NPT Submicronic Compressed Air Filter Motor Guard M-30 1/4 NPT Submicronic Compressed Air Filter
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1 1" Inline Air Compressor Water Moisture Filter Trap Separator w/ Manual Drain
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1 1" Inline Air Compressor In Line Water Moisture Filter Trap Separator Auto Drain
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Le Lematec Air Compressor Filter, Inline Water and Moisture Separator with Drain Valve. 150 PSI Air Dryer. AI303 Le Lematec Air Compressor Filter, Inline Water and Moisture Separator with Drain Valve. 150 PSI Air Dryer. AI303
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3/4 3/4" Inline Air Compressor In Line Water Moisture Filter Trap Separator Auto Drain
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Le Lematec AI303-C1 Air Compressor Filter Oil Water Separator with Push Button Drain Valve with Teflon for Air Tools and Accessories Le Lematec AI303-C1 Air Compressor Filter Oil Water Separator with Push Button Drain Valve with Teflon for Air Tools and Accessories
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3 STAGE, INDUSTRIAL GRADE IN-LINE COALESCING FILTER & DESICCANT AIR DRYER COMBINATION WITH METAL BOWLS FOR SPRAY GUN EQUIPMENT PAINT BOOTH COMPRESSOR, PLASMA CUTTER (1/2 3 STAGE, INDUSTRIAL GRADE IN-LINE COALESCING FILTER & DESICCANT AIR DRYER COMBINATION WITH METAL BOWLS FOR SPRAY GUN EQUIPMENT PAINT BOOTH COMPRESSOR, PLASMA CUTTER (1/2" AUTO DRAIN)
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SUPER HEAVY DUTY HIGH FLOW AIR FILTRATION SYSTEM, 2 STAGE PARTICULATE FILTER PLUS OIL REMOVING COALESCING FILTER COMBINATION (3/4 SUPER HEAVY DUTY HIGH FLOW AIR FILTRATION SYSTEM, 2 STAGE PARTICULATE FILTER PLUS OIL REMOVING COALESCING FILTER COMBINATION (3/4" NPT, AUTO DRAIN)
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1/2 1/2" NPT MID FLOW Filter Regulator Coalescing Desiccant Dryer System For Compressed Air Lines, Poly Bowls, Great For Paint Spray And Plasma Cutter (MANUAL DRAIN)
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3 STAGE, HEAVY DUTY INDUSTRIAL GRADE FILTER REGULATOR COALESCING DESICCANT DRYER SYSTEM FOR COMPRESSED AIR LINES, METAL BOWLS, GREAT FOR PAINT SPRAY AND PLASMA CUTTER (3/4 3 STAGE, HEAVY DUTY INDUSTRIAL GRADE FILTER REGULATOR COALESCING DESICCANT DRYER SYSTEM FOR COMPRESSED AIR LINES, METAL BOWLS, GREAT FOR PAINT SPRAY AND PLASMA CUTTER (3/4" NPT, MANUAL DRAIN)
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1. Motor Guard M-30 1/4 NPT Submicronic Compressed Air Filter

Feature

Pipe size is 1/4 NPT, Nominal airflow is 45 CFM, filtration rating is .01 micron and the maximum pressure is 125 psi
Temperature range is 32-175 F, replacement Element is m-7231/4 and the has NPT connections on bottom
Made in USA
The ultimate defense against damaging dirty air by removing particulates, condensed moisture and oil aerosols down to .01 microns in size
Unit will mount in spray booths, on plasma cutters or on other equipment requiring Ultra-clean air and a flexible connection

2. 1" Inline Air Compressor Water Moisture Filter Trap Separator w/ Manual Drain

Feature

185 CFM Flow Rate 1" FPT Air Inlet port 1" FPT Air Outlet port 5 micron filter element. Wall mounting bracket included Sight Glass on Metal bowl to view your moisture level & Manual drain 250 PSI Max Input pressure Drain capacity 300ml Oil capacity 350ml

3. 1" Inline Air Compressor In Line Water Moisture Filter Trap Separator Auto Drain

Feature

185 CFM Flow Rate 1" FPT Air Inlet port 1" FPT Air Outlet port 5 micron filter element. Wall mounting bracket included Sight Glass on Metal bowl to view your moisture level & Auto drain 250 PSI Max Input pressure Drain capacity 300ml Oil capacity 350ml

4. Le Lematec Air Compressor Filter, Inline Water and Moisture Separator with Drain Valve. 150 PSI Air Dryer. AI303

Feature

Air compressor dryer provides quick and easy cleaning with its push button drain valve. Just push the button to eject oil dirt and water from the filter.
The inline air filter works between 90 PSI to 150 PSI, perfect as a plasma filter.
LE Lematec air compressor filter oil and water separators are compatible with any air compressor and air tool. The air filter traps dirt oil and moisture as a receiving filter for air tools.
Keep air tools in tip top working condition and prevent costly repairs by preventing dirt and moisture from damaging your air tools and accessories.
LE Lematec air dryer is a heavy duty inline air filter. Made from aluminum and solid brass fittings, it offers excellent reliability. Complete with inch connection.

5. 3/4" Inline Air Compressor In Line Water Moisture Filter Trap Separator Auto Drain

Feature

185 CFM Flow Rate 3/4" FPT Air Inlet port 3/4" FPT Air Outlet port 5 micron filter element. Wall mounting bracket included Sight Glass on Metal bowl to view your moisture level & Auto drain 250 PSI Max Input pressure Drain capacity 300ml Oil capacity 350ml

6. Le Lematec AI303-C1 Air Compressor Filter Oil Water Separator with Push Button Drain Valve with Teflon for Air Tools and Accessories

Feature

Le Lematec air compressor filter oil and water separator works with any air compressor and air tool. The air filter traps dirt oil and moisture as a receiving filter for air tools.
Keep air tools in tip top working condition and prevent costly repairs by preventing dirt and moisture from damaging your air tools and accessories
LE Lematec air dryer is a heavy duty inline air filter. Made from aluminum with solid brass fittings, it offers excellent reliability. Features a 1/4 inch air inlet female and 1/4 male.
Air compressor dryer provides quick and easy cleaning with its push button drain valve. Just push the button to eject oil dirt and water from the filter.
The inline air filter works under standard operating pressure of 90 PSI up to 150 PSI maximum.

7. 3 STAGE, INDUSTRIAL GRADE IN-LINE COALESCING FILTER & DESICCANT AIR DRYER COMBINATION WITH METAL BOWLS FOR SPRAY GUN EQUIPMENT PAINT BOOTH COMPRESSOR, PLASMA CUTTER (1/2" AUTO DRAIN)

Feature

3 STAGE, INDUSTRIAL GRADE COALESCING FILTER PLUS DESICCANT AIR DRYER, IN-LINE TYPE FOR COMPRESSED AIR LINES, PERFECT FOR SPRAY OR PLASMA CUTTER APPLICATIONS.
2 BAGS OF DESICCANT BEADS INCLUDED, BEADS GO FROM BLUE TO PINK WHEN TIME TO CHANGE
STAGE 1: PARTICULATE FILTER / WATER TRAP REMOVES 95% OF MOISTURE AND DEBRIS FROM COMPRESSED AIR LINES. 5u MICRON ELEMENT
STAGE 2: COALESCING FILTER / OIL REMOVING FILTER REMOVES 99.98% OF MOISTURE, OIL AND CONTAMINANTS FROM YOUR COMPRESSED AIR LINES
STAGE 3: DESICCANT DRYER TAKES UP TO 5oz OF DESICCANT BEADS TO THOROUGHLY DRY OUR YOUR COMPRESSED AIR LINES BEFORE THE AIR GETS TO YOUR PNEUMATIC TOOLS

8. SUPER HEAVY DUTY HIGH FLOW AIR FILTRATION SYSTEM, 2 STAGE PARTICULATE FILTER PLUS OIL REMOVING COALESCING FILTER COMBINATION (3/4" NPT, AUTO DRAIN)

Feature

3/4" NPT, HEAVY DUTY INDUSTRIAL GRADE AIR FILTRATION AND IN-LINE AIR DRYER COMBINATION WITH PRESSURE REGULATOR. WITH INTERNAL FLOAT DRAIN (AUTO DRAIN) STAGE 1.
175 PSI MAX INPUT PRESSURE, EQUIPPED WITH 11oz METAL BOWLS, VISIBLE SIGHT GLASSES, PRESSURE GAUGE, WALL MOUNTING BRACKET AND 4 BAGS OF DESICCANT BEADS
STAGE 1: PARTICULATE FILTER/WATER TRAP WITH PRESSURE REGULATOR. 5 MICRON ELEMENT REMOVES 95% OF MOISTURE AND DEBRIS, REGULATOR WILL ADJUST PRESSURE FROM 7 TO 175 PSI
STAGE 2: COALESCING / OIL REMOVING FILTER, EQUIPPED WITH 0.01 MICRON ELEMENT WILL REMOVE 99.98% OF MOISTURE, MOISTURE VAPOR AND OIL THAT MADE ITS WAY PAST STAGE 1.
STAGE 3: IN-LINE DESICCANT AIR DRYER WILL DRY OUT THE OUTGOING COMPRESSED AIR LINES BEFORE REACHING YOUR PNEUMATIC TOOLS, BEADS TURN FROM BLUE TO PINK WHEN TIME TO CHANGE.

9. 1/2" NPT MID FLOW Filter Regulator Coalescing Desiccant Dryer System For Compressed Air Lines, Poly Bowls, Great For Paint Spray And Plasma Cutter (MANUAL DRAIN)

Feature

PLEASE NOTE: 1/2" NPT MEASURES 0.850" OUTSIDE THREAD DIAMETER IN INCHES. 1/2" NPT, Industrial Rated 3 Stage Combo Water Filter/ Pressure Regulator/ Coalescing Filter/ Desiccant Dryer System, With Wall Mounting Bracket And Internal Float Drain (MANUAL DRAIN) STAGE 1
150 PSI Max Input. This Unit Will Regulator Your Incoming And Outgoing Air Pressure While Removing Moisture Water, Moisture Vapor And Oil From Your Compressed Air Lines, Then Finally Drying Out The Super Clean Air With An In-Line Desiccant Air Dryer
STAGE 1: Water Trap Filter / Pressure Regulator. Equipped With 5 Micron Element To Remove 95% Of The Initial Moisture And Debris From Your Compressed Air Line. Regulator Adjusts Pressure From 7 To 150 PSI. 5oz Poly Bowl With Visible Sight Glass.
STAGE 2: Coalescing Filter Also Known As Oil Removing Filter Armed With A 0.01 Micron Element That Removes 99.98% Of Moisture, Moisture Vapor And Oil That Made Its Way Past Your Stage 1 Filter. 5oz Poly Bowl With Visible Sight Glass. Red Indicator Pops Up When Time For Filter Change.
STAGE 3: Desiccant Air Dryer, Dries Out Your Super Clean Air Before Going Downstream To Your Air Tools. Uses 5oz Desiccant Beads In The Bowl. Beads Turn From Blue To Pink When Time To Change. Unit Comes With 2 Bags Desiccant Beads.

10. 3 STAGE, HEAVY DUTY INDUSTRIAL GRADE FILTER REGULATOR COALESCING DESICCANT DRYER SYSTEM FOR COMPRESSED AIR LINES, METAL BOWLS, GREAT FOR PAINT SPRAY AND PLASMA CUTTER (3/4" NPT, MANUAL DRAIN)

Feature

3/4" NPT, INDUSTRIAL RATED 3 STAGE COMBO WATER FILTER/ PRESSURE REGULATOR/ COALESCING FILTER/ DESICCANT DRYER SYSTEM, WITH WALL MOUNTING BRACKET AND MANUAL DRAIN STAGE 1
225 PSI MAX INPUT. THIS UNIT WILL REGULATOR YOUR INCOMING AND OUTGOING AIR PRESSURE WHILE REMOVING MOISTURE WATER, MOISTURE VAPOR AND OIL FROM YOUR COMPRESSED AIR LINES, THEN FINALLY DRYING OUT THE SUPER CLEAN AIR WITH AN IN-LINE DESICCANT AIR DRYER
STAGE 1: WATER TRAP FILTER / PRESSURE REGULATOR. EQUIPPED WITH 5 MICRON ELEMENT TO REMOVE 95% OF THE INITIAL MOISTURE AND DEBRIS FROM YOUR COMPRESSED AIR LINE. REGULATOR ADJUSTS PRESSURE FROM 7 TO 215 PSI. 5oz METAL BOWL WITH VISIBLE SIGHT GLASS.
STAGE 2: COALESCING FILTER ALSO KNOWN AS OIL REMOVING FILTER ARMED WITH A 0.01 MICRON ELEMENT THAT REMOVES 99.98% OF MOISTURE, MOISTURE VAPOR AND OIL THAT MADE ITS WAY PAST YOUR STAGE 1 FILTER. 5oz METAL BOWL WITH VISIBLE SIGHT GLASS. RED INDICATOR POPS UP WHEN TIME FOR FILTER CHANGE.
STAGE 3: DESICCANT AIR DRYER, DRIES OUT YOUR SUPER CLEAN AIR BEFORE GOING DOWNSTREAM TO YOUR AIR TOOLS. USES 5oz DESICCANT BEADS IN THE BOWL. BEADS TURN FROM BLUE TO PINK WHEN TIME TO CHANGE. COMES WITH 2 BAGS OF DESICCANT BEADS.

Conclusion

By our suggestions above, we hope that you can found the best inline air filter for air compressor for you. Please don't forget to share your experience by comment in this post. Thank you!
Kristi Kelly