1/4" NPT Compressed Air Filters

Last Updated: April 1, 2025

Description

1/4" NPT Compressed Air Filters are designed to remove contaminants such as particles and moisture from compressed air systems. These filters ensure that the air used in various applications is clean and free from impurities, which can protect sensitive equipment and extend the lifespan of system components.

Working Principle

Compressed air filters operate by passing the air through a filtration medium that captures particles and moisture. The filtration process typically involves a filter element with a specific micron rating that determines the size of particles it can remove. By eliminating contaminants, these filters enhance the efficiency of pneumatic tools and minimize equipment failures. This is particularly useful in maintaining the integrity of the air used in various industrial processes.

Applications

Compressed air filters are widely used in manufacturing industries where clean air is crucial. For example, in the automotive industry, they are essential for pneumatic tools like impact wrenches and spray guns, which require dry, clean air to function effectively. In the food processing industry, these filters are used to ensure that the air used in packaging and conveying products is free from contaminants, thereby protecting the product's integrity.

Advantages over other Compressed Air Filters

The 1/4" NPT Compressed Air Filters offer specific advantages such as a compact size that is suitable for systems with limited space. They are also designed to handle a range of pressures and temperatures, making them versatile for various industrial applications. Additionally, their ability to effectively remove both particles and moisture makes them a reliable choice for maintaining air quality in sensitive environments.

Limitations

One limitation of 1/4" NPT Compressed Air Filters is their capacity to handle only a certain volume of air flow, which may not be suitable for larger systems requiring higher flow rates. Additionally, the effectiveness of the filter can diminish over time as it becomes clogged with contaminants, necessitating regular maintenance and replacement.

Considerations

When selecting a 1/4" NPT Compressed Air Filter, it is important to consider factors such as initial costs, operating expenses, and maintenance requirements. The durability of the filter material and the frequency of replacement will impact long-term costs. It is also crucial to ensure that the filter's micron rating matches the specific needs of the application to maintain the desired level of air purity. Regular maintenance, including checking for pressure drops and replacing filter elements, is necessary to ensure optimal performance and longevity of the system.

33 Results
Manual Drain Filter Separators
from EXAIR

EXAIR's Filter Separators remove water, dirt and rust from your compressed air system. They prevent these contaminants from plugging or damaging the compressed air products. A filter separator should be installed prior to an oil removal filter, pressure regulator or valve. The Model 9003 Manual... [See More]

  • Connection: 1/4" NPT
  • Maximum Volume: 27.0
  • Filter Type: General Purpose
  • Drain: Manual
8272323 [AF20-N02-Z-A from SMC Corporation of America]
from RS Components, Ltd.

SMCs AF modular air filters are now easy to replace as the bowl and element are in one piece. The AF series is also more compact than the previous range. Improvements have also been made to the bowls with bowl guards now being transparent, users can monitor from any angle. Modular connection. [See More]

  • Connection: 1/4" NPT
  • Filter Size: 5
  • Filter Type: General Purpose
  • Maximum Pressure: 145 to 218
Active carbon filter -- LFX-1/4-D-MIDI
from Festo Corporation

Removal of gaseous oil particles from compressed air using activated carbon. Air quality class at the output [1.4.1] to ISO 8573-1. Eliminates odors and vapors. Residual oil content = 0.003 mg/m ³. Size: mini, midi, maxi [See More]

  • Connection: 1/4" NPT; G1/4 Sub-base
  • Maximum Volume: 31.8
  • Filter Type: General Purpose; Adsorbent
  • Maximum Pressure: 0 to 232
Oil Removal Filters
from EXAIR

EXAIR's Model 9027, 9005 and 9006 Oil Removal Filters remove oil particulate that is typical of many compressed air systems. A .03 micron element is used to trap submicron particles. An internal float automatically activates the drain when full. [See More]

  • Connection: 1/4" NPT; 3/8" NPT; 3/4" NPT; 1 1/2" NPT
  • Filter Type: General Purpose
8272418 [AF20-N02C-CZ-A from SMC Corporation of America]
from RS Components, Ltd.

SMCs AF modular air filters are now easy to replace as the bowl and element are in one piece. The AF series is also more compact than the previous range. Improvements have also been made to the bowls with bowl guards now being transparent, users can monitor from any angle. Modular connection. [See More]

  • Connection: 1/4" NPT
  • Filter Size: 5
  • Filter Type: General Purpose
  • Maximum Pressure: 145 to 218
Active carbon filter -- MS4-LFX-1/4-R
from Festo Corporation

Grid dimension 40 mm. Removal of gaseous oil particles from compressed air using activated carbon. Air quality class at the output [1.4.1] to ISO 8573-1. Eliminates odors and vapors. Residual oil content = 0.003 mg/m ³ [See More]

  • Connection: 1/4" NPT; G1/4
  • Filter Size: 4
  • Filter Type: General Purpose; Adsorbent
  • Maximum Volume: 12.7
Branching module -- MS4N-FRM-1/8
from Festo Corporation

With NPT connecting thread. Grid dimension 40 mm. With optional integrated non-return function and pressure switch. Outlet at top and bottom. Can be used as an intermediate distributor for varying air qualities. Available with pressure sensor [See More]

  • Connection: 1/8" NPT; 1/4" NPT; NPT1/8-27
  • Maximum Volume: 63.6
  • Filter Type: General Purpose
  • Maximum Pressure: 0 to 203
Branching module -- MS6-FRM-1/4-Y
from Festo Corporation

Width dimension 62 mm. With optional integrated non-return function and pressure switch. Outlet at top and bottom. Can be used as an intermediate distributor for varying air qualities. Available with pressure sensor [See More]

  • Connection: 1/4" NPT; 1/2" NPT; G1/4
  • Maximum Volume: 148.3
  • Filter Type: General Purpose
  • Maximum Pressure: 0 to 174
Compressed air filter -- MS4-LF-1/4-CRM
from Festo Corporation

Grid dimension 40 mm. Good particle and condensate separation. High flow rate with minimal pressure drop. Available with manual, semi-automatic, fully automatic, or fully automatic, electrically actuated condensate drain [See More]

  • Connection: 1/4" NPT; G1/4
  • Filter Size: 4
  • Filter Type: General Purpose
  • Maximum Volume: 45.9
Fine filter -- LFMB-1/4-D-MIDI-DA
from Festo Corporation

High-efficiency filter for exceptionally clean compressed air. Removal of oil aerosols from compressed air. Version with differential pressure gauge for visual indication of filter contamination. Size: mini, midi, maxi [See More]

  • Connection: 1/4" NPT; G1/4
  • Maximum Volume: 31.8
  • Filter Type: General Purpose
  • Maximum Pressure: 15 to 232
Fine filter -- MS4-LFM-1/4-BRM-DA
from Festo Corporation

Grid dimension 40 mm. High-efficiency filter for exceptionally clean compressed air. Removal of oil aerosols from compressed air. Available with differential pressure gauge for indication of contamination. Available with electronic filter pollution indicator [See More]

  • Connection: 1/4" NPT; G1/4
  • Filter Size: 4
  • Filter Type: General Purpose
  • Maximum Volume: 12.7
Fine filter -- MS6-LFM-1/4-BRM
from Festo Corporation

Width dimension 62 mm. High-efficiency filter for exceptionally clean compressed air. Removal of oil aerosols from compressed air. Available with differential pressure gauge for indication of contamination. Available with electronic filter pollution indicator [See More]

  • Connection: 1/4" NPT; G1/4
  • Filter Size: 6
  • Filter Type: General Purpose
  • Maximum Volume: 33.5
Fine filter -- MS6N-LFM-1/4-BRM
from Festo Corporation

With NPT connecting thread. Width dimension 62 mm. High-efficiency filter for exceptionally clean compressed air. Removal of oil aerosols from compressed air. Available with differential pressure gauge for indication of contamination. Available with electronic filter pollution indicator [See More]

  • Connection: 1/4" NPT; 1/4 NPT
  • Filter Size: 6
  • Filter Type: General Purpose
  • Maximum Volume: 33.5
Fine filter combination -- LFMBA-1/4-D-MIDI
from Festo Corporation

High-efficiency filter for exceptionally clean compressed air. Fully assembled filter combination, comprising LFMB and LFMA. Version with differential pressure gauge for visual indication of filter contamination. Size: mini, midi, maxi [See More]

  • Connection: 1/4" NPT; G1/4
  • Maximum Pressure: 15 to 232
  • Filter Type: General Purpose; Combination
  • Operating Temperature: 14 to 140
Fine filter combination -- LFMBA-1/4-D-MIDI-DA
from Festo Corporation

High-efficiency filter for exceptionally clean compressed air. Fully assembled filter combination, comprising LFMB and LFMA. Version with differential pressure gauge for visual indication of filter contamination. Size: mini, midi, maxi [See More]

  • Connection: 1/4" NPT; G1/4
  • Maximum Pressure: 15 to 232
  • Filter Type: General Purpose; Combination
  • Operating Temperature: 14 to 140
Disposable In-Line Filters
from ASCO

High Efficiency Miniature Filtration Products. Numatics disposable in-line filters include the PL Series polyurethane straight and nylon dual barbed styles as well as the PT Series nylon straight and 90 degree barbed styles. Both offer coalescing and particulate element grades. Our PH and PX Series... [See More]

  • Connection: 1/8" NPT; 1/4" NPT
  • Filter Size: 0.0100 to 150
  • Filter Type: Coalescing
  • Maximum Volume: 1.1 to 39.3
2306 Instrument Air Filter
from Siemens Process Instrumentation

The Model 2306 instrument air filter is used to remove dirt, oil, water, and other impurities from an instrument-air supply. [See More]

  • Connection: 1/4" NPT
  • Maximum Pressure: 1000
  • Filter Type: Coalescing
  • Material: Brass
Model F-GGC
from Beach Filter Products, Inc.

Disposable specialty filter - filter weight: 12 oz. [See More]

  • Connection: 1/4" NPT
  • Filter Size: 0.3000
  • Filter Type: Coalescing; Adsorbent; Combination
  • Maximum Volume: 5.0
Air Filters -- MAF-3
from Montalvo Corporation

The Montalvo MPC-4ce electro-pneumatic converter provides accurate, dependable conversion of a DC current signal into a proportional pneumatic output. Operating on a 4 to 20 milliamp input, no additional AC or DC power is required. The MPC-4ce has a high flow rate, providing the rapid response... [See More]

  • Connection: 1/4" NPT
  • Filter Size: 5
  • Filter Type: Combination
  • Maximum Pressure: 2176
Compressed Air-Line Filters -- Titus THF Series
from Titus Company (The)

The quality of your compressed air system is primarily dependent on the quality of your chosen air filtration solution. At The Titus Company, we are proud to offer our customers the best filtration products currently available. [See More]

  • Connection: 1/4" NPT; 3/8" NPT; 1/2" NPT; 3/4" NPT; 1" NPT; 1 1/2" NPT; 2" NPT; Flanged
  • Maximum Volume: 15.0 to 16100.0
  • Filter Type: General Purpose
  • Drain: Manual (optional feature); Automatic (optional feature)
High Pressure Filter Aluminum 60-725 psi -- HP PF 1 C/D 725 psi ALU
from Chicago Pneumatic and Pneumatech

The new Pneumatech high pressure filters is the latest innovation from Pneumatech. The high pressure filter has been develop in close cooperation with our customers. The high pressure filters are used in many customer applications such as: Laser cutting, PET bottling, Pressure testing of components,... [See More]

  • Connection: 1/4" NPT
  • Maximum Volume: 94.0
  • Filter Type: General Purpose
  • Maximum Pressure: 60 to 725
Air Filter -- Type 320
from ControlAir LLC

The Type 320 Filter unit is a 40-micron depth filter that removes dirt, moisture and other particles from air and gas lines. Robustly constructed of die-cast aluminum with a baked epoxy finish, this unit stands up in corrosive operating conditions. This filter is an economical alternative for air... [See More]

  • Connection: 1/4" NPT
  • Filter Size: 5 to 40
  • Filter Type: General Purpose
  • Maximum Volume: 20.0
Air/Oil Combination Filter
from AIRBRASIVE

Airbrasive ® Air/Oil Filters will filter the air in your work environment removing oil, water, and harmful contaminants. Our Air/Oil Filters are 99.9% efficient against sub-micron particles that will be in the air while you work. FEATURES. Combination filter specifically designed to remove... [See More]

  • Connection: 1/4" NPT
  • Maximum Pressure: 150
  • Filter Type: Coalescing; Combination
Compressed Air Filter -- COL-26F2 [COL-26F2 from Coilhose Pneumatics, Inc.]
from Reid Supply

Heavy Duty Air Filters have a 40 micron sintered bronze filter element with a bayonet locking ring for easy bowl removal by hand. These filters have a high strength polycarbonate bowl and supplied bowl guard. . 2.000 inW x 6.000 inH Economy Compressed Air Filter has a max operating pressure of 150... [See More]

  • Connection: 1/4" NPT
  • Material: Polycarbonate
  • Maximum Pressure: 150
Coalescing Compressed Air Filters -- 2002N-1B1-DX
from Parker Hannifin Filtration and Separation Div. / Balston Products

Balston Coalescing Compressed Air Filters protect your equipment and delicate instruments from the dirt, water, and oil usually found in compressed air. Balston filters remove these contaminants at an efficiency rate of 99.99% for 0.01 micron particles and droplets. Liquid is channeled from the... [See More]

  • Connection: 1/4" NPT
  • Maximum Volume: 63.0
  • Filter Type: Coalescing
  • Drain: Automatic
X-Stream™ Super Liquid Separator -- NF-200
from Nex Flow Air Products Corp.

Newly developed Liquid Super Separator is a new concept of a pneumatic mist remover without filter element. The Element Free Pneumatic Water Separator uses a special centrifugal technique with radial multi-nozzles that is world patent pending and makes it possible to reject liquid mist (water and... [See More]

  • Connection: 1/4" NPT
  • Maximum Pressure: 140
  • Maximum Volume: 9.0
  • Drain: Automatic
Drip Legs -- ADL Series
from ASCO

The Numatics ADL Series Drip Leg in combination with coalescing filtration delivers an efficient and economical package for eliminating water and water aerosols from compressed air systems. Designed with an oversized expansion chamber, the ADL Series offers one of the best water removal efficiencies... [See More]

  • Connection: 1/4" NPT; 2" NPT
  • Maximum Pressure: 150
  • Filter Type: Coalescing
  • Operating Temperature: 50 to 200
Model 91-HF Filter-Regulator
from Siemens Process Instrumentation

The Model 91-HF Filter-Regulator is designed to provide clean, accurate air pressure to instruments, valves, and other automatic control equipment. [See More]

  • Connection: 1/4" NPT
  • Filter Size: 3
  • Filter Type: General Purpose
  • Maximum Volume: 5.0
Air Filter -- Type 345
from ControlAir LLC

The Type 345 Filter unit is a 40-micron (optional 5 micron) depth filter that removes dirt, moisture and other particles from air and gas lines. Robustly constructed of die-cast aluminum with a baked epoxy finish, this unit stands up in corrosive operating conditions. This filter is an economical... [See More]

  • Connection: 1/4" NPT; 1/2" NPT
  • Filter Size: 5 to 40
  • Filter Type: General Purpose
  • Maximum Pressure: 25 to 250
Compressed Air Filter -- COL-8822R [COL-8822R from Coilhose Pneumatics, Inc.]
from Reid Supply

Heavy Duty Air Filters have a 40 micron sintered bronze filter element with a bayonet locking ring for easy bowl removal by hand. These filters have a high strength polycarbonate bowl and supplied bowl guard. . 2.938 inW x 6.000 inH Heavy Duty Compressed Air Filter has a max operating pressure of... [See More]

  • Connection: 1/4" NPT
  • Material: Polycarbonate
  • Maximum Pressure: 150
Series 105 - Filters, Regulators, and Lubricators -- 342 25 216
from ASCO

ASCO's dynamic Modulair 100 Series offers all the control, flexibility and performance you need from your air preparation equipment. The components of the Mod 100 Series can be installed separately or can be assembled into a complete unit, as you require. • Totally modular system •... [See More]

  • Connection: 1/4" NPT
  • Filter Size: 25
  • Filter Type: General Purpose
  • Maximum Volume: 37.1
Coalescing Filter -- FA10
from ControlAir LLC

Superior filtration with high flow and minimal pressure drop. The FA10 Coalescing Filter provides superior filtration while allowing for high ow with minimum pressure drop. The polycarbonate bowl allows for visual indication of the filtered liquid level. The quick release lock on. the drain bowl... [See More]

  • Connection: 1/8" NPT; 1/4" NPT; 1/2" NPT
  • Filter Size: 0.0100 to 0.0300
  • Filter Type: Coalescing
  • Maximum Volume: 39.0
Regulator/Coalescing Filter Combo -- FA12
from ControlAir LLC

Oil free air for critical applications. The FA12 Filter Regulator/Coalescing Filter Combo comes in one convenient piggy-back assembly. The high performance regulator provides filtration to 5 micron while the coalescing filter provides further filtration of 0.3 or 0.01 micron. Polycarbonate bowls... [See More]

  • Connection: 1/8" NPT; 1/4" NPT
  • Filter Size: 0.0100 to 0.3000
  • Filter Type: Coalescing
  • Maximum Volume: 46.0