Festo

FESTO MS Series Air Filters

Festo's MS Series Filters offer high-performance air filtration for a wide range of pneumatic applications. Engineered for reliability, modularity, and easy integration, the MS series ensures clean, dry air for optimal machine performance and longevity. With multiple configurations available, including LF, LFM, N, and LXM variants, you can tailor your air preparation system to match your specific application needs.

  • Modular design for easy assembly and expansion
  • Precision filtration ranging from 5 µm to 0.01 µm
  • Manual, semi-auto, and fully automatic condensate drains
  • Compatible with regulators, dryers, lubricators, and safety valves
  • Reliable, long-lasting performance in industrial environments

Part Number
Festo Part Number
Thread Size
Filtration Grade
Condensate Drain
Flow Direction
Flow Rate (l/min)
Operating Pressure (bar)
Temperature Range (°C)
Material
Weight (g)
Notes
MS4-LF-1/4-CRM
1/4
5 µm
Manual
Left to Right
1,300
0 to 14
-10 to +60
Aluminum, PE, PC
349
Standard filter, manual condensate drain
MS4-LF-1/4-CRV
1/4
5 µm
Automatic
Left to Right
1,000
2 to 12
-10 to +60
Aluminum, PE, PC
189
Automatic condensate drain, RoHS compliant
MS4-LF-1/4-ERM
1/4
0.01 µm
Manual
Left to Right
1,000
2 to 12
-10 to +60
Aluminum, PE, PC
350
Ultra-fine filtration, for high-quality air processing
MS4-LF-1/4-ERM-Z
1/4
0.01 µm
Automatic
Left to Right
1,000
2 to 12
-10 to +60
Aluminum, PE, PC
350
Automatic condensate drain, ultra-high filtration
MS4-LF-1/4-ERV
1/4
1 µm
Manual
Left to Right
1,300
0 to 14
-10 to +60
Aluminum, PE, PC
350
Sintered filter, fine filtration
MS4-LF-1/8-CRM
1/8
5 µm
Manual
Left to Right
1,000
0 to 14
-10 to +60
Aluminum, PE, PC
189
Manual condensate drain, compact filter
MS4-LF-1/8-CRV
1/8
5 µm
Automatic
Left to Right
800
2 to 12
-10 to +60
Aluminum, PE, PC
189
Automatic condensate drain, compact design
MS4-LF-1/8-ERM
1/8
0.01 µm
Manual
Left to Right
800
2 to 12
-10 to +60
Aluminum, PE, PC
189
Ultra-fine filtration, manual condensate drain
MS4-LFM-1/4-ARM
1/4
0.01 µm
Manual
Left to Right
2,800
1 to 12
-10 to +60
Aluminum, PE, PC
330
Micro filter, borosilicate fiber, ultra-high filtration
MS4-LFM-1/4-ARM-Z
1/4
0.01 µm
Automatic
Left to Right
2,800
1 to 12
-10 to +60
Aluminum, PE, PC
330
Automatic condensate drain, ultra-high filtration
MS4-LFM-1/4-BRM
1/4
1 µm
Manual
Left to Right
2,800
1 to 12
-10 to +60
Aluminum, PE, PC
330
Sintered borosilicate fiber filter
MS4-LFM-1/8-ARM
1/8
0.01 µm
Manual
Left to Right
1,400
1 to 12
-10 to +60
Aluminum, PE, PC
189
Micro filter, borosilicate fiber, ultra-high filtration
MS4-LFM-1/8-BRM
1/8
1 µm
Manual
Left to Right
1,400
1 to 12
-10 to +60
Aluminum, PE, PC
189
Sintered borosilicate fiber filter
MS4-LFX-1/4-R
1/4
Active Carbon
Manual
Left to Right
1,000
1 to 12
-10 to +60
Aluminum, PE, PC
350
Active carbon filtration for odors and contaminants
MS4-LFX-1/4-R-Z
1/4
Active Carbon
Automatic
Left to Right
1,000
1 to 12
-10 to +60
Aluminum, PE, PC
350
Active carbon filter with automatic condensate drain
MS4-LF-1/4-CUM
1/4
5 µm
Manual
Left to Right
1,300
0 to 14
-10 to +60
Aluminum, PE, PC
349
Standard filter with manual condensate drain
MS4-LF-1/4-EUV
1/4
5 µm
Manual
Left to Right
1,300
0 to 14
-10 to +60
Aluminum, PE, PC
349
Compact filter, UV resistant material
MS4-LF-1/4-EUM
1/4
5 µm
Manual
Left to Right
1,300
0 to 14
-10 to +60
Aluminum, PE, PC
349
Compact filter, UV resistant material
Part Number
Festo Part Number
Filter Type
Size
Thread Size
Filtration Grade
Condensate Drain
Flow Direction
Flow Rate (l/min)
Operating Pressure (bar)
Temperature Range (°C)
Material
Weight (g)
Notes
MS6-LF-1/2-CRM
Compressed Air Filter
1/2"
1/2" BSPP
5 μm
Yes
Bidirectional
500
0 to 20
-10 to +60
Aluminum, PE, PC
190
Standard model
MS6-LF-1/2-CRM-Z
Compressed Air Filter
1/2"
1/2" BSPP
5 μm
Yes
Bidirectional
600
0 to 20
-10 to +60
Aluminum, PE, PC
195
Z-type condensate drain
MS6-LF-1/2-CRV
Compressed Air Filter
1/2"
1/2" BSPP
3 μm
Yes
Bidirectional
700
2 to 12
-10 to +60
Aluminum, PE, PC
200
High flow rate
MS6-LF-1/2-CRV-Z
Compressed Air Filter
1/2"
1/2" BSPP
3 μm
Yes
Bidirectional
750
2 to 12
-10 to +60
Aluminum, PE, PC
205
Z-type condensate drain
MS6-LF-1/2-CUM
Compressed Air Filter
1/2"
1/2" BSPP
1 μm
Yes
Bidirectional
800
0 to 20
-10 to +60
Aluminum, PE, PC
210
Ultra-fine filtration
MS6-LF-1/2-CUV
Compressed Air Filter
1/2"
1/2" BSPP
1 μm
Yes
Bidirectional
850
2 to 12
-10 to +60
Aluminum, PE, PC
215
Ultra-fine filtration
MS6-LF-1/2-CUV-Z
Compressed Air Filter
1/2"
1/2" BSPP
1 μm
Yes
Bidirectional
900
2 to 12
-10 to +60
Aluminum, PE, PC
220
Z-type condensate drain
MS6-LF-1/2-ERM
Compressed Air Filter
1/2"
1/2" BSPP
5 μm
Yes
Bidirectional
600
0 to 20
-10 to +60
Aluminum, PE, PC
230
Easy removal filter
MS6-LF-1/2-ERM-Z
Compressed Air Filter
1/2"
1/2" BSPP
5 μm
Yes
Bidirectional
650
0 to 20
-10 to +60
Aluminum, PE, PC
235
Z-type condensate drain
MS6-LF-1/2-ERV
Compressed Air Filter
1/2"
1/2" BSPP
1 μm
Yes
Bidirectional
700
2 to 12
-10 to +60
Aluminum, PE, PC
240
Ultra-fine filtration
MS6-LF-1/2-ERV-Z
Compressed Air Filter
1/2"
1/2" BSPP
1 μm
Yes
Bidirectional
750
2 to 12
-10 to +60
Aluminum, PE, PC
245
Z-type condensate drain
MS6-LF-1/2-EUM
Compressed Air Filter
1/2"
1/2" BSPP
3 μm
Yes
Bidirectional
800
0 to 20
-10 to +60
Aluminum, PE, PC
250
Enhanced material filter
MS6-LF-1/2-EUV
Compressed Air Filter
1/2"
1/2" BSPP
3 μm
Yes
Bidirectional
850
2 to 12
-10 to +60
Aluminum, PE, PC
255
Enhanced material filter
MS6-LF-1/4-CRM
Compressed Air Filter
1/4"
1/4" BSPP
5 μm
Yes
Bidirectional
400
0 to 20
-10 to +60
Aluminum, PE, PC
180
Standard model
MS6-LF-1/4-CRV
Compressed Air Filter
1/4"
1/4" BSPP
3 μm
Yes
Bidirectional
450
2 to 12
-10 to +60
Aluminum, PE, PC
185
High flow rate
MS6-LF-1/4-ERM
Compressed Air Filter
1/4"
1/4" BSPP
5 μm
Yes
Bidirectional
500
0 to 20
-10 to +60
Aluminum, PE, PC
190
Easy removal filter
MS6-LF-3/8-CRM
Compressed Air Filter
3/8"
3/8" BSPP
5 μm
Yes
Bidirectional
550
0 to 20
-10 to +60
Aluminum, PE, PC
210
Standard model
MS6-LF-3/8-CRV
Compressed Air Filter
3/8"
3/8" BSPP
3 μm
Yes
Bidirectional
600
2 to 12
-10 to +60
Aluminum, PE, PC
215
High flow rate
MS6-LF-3/8-ERM
Compressed Air Filter
3/8"
3/8" BSPP
5 μm
Yes
Bidirectional
650
0 to 20
-10 to +60
Aluminum, PE, PC
220
Easy removal filter
MS6-LFM-1/2-AUV
Micro Filter
1/2"
1/2"
0.01 µm
Fully Automatic
Left to Right
900
2–12
-10 to +60
Die-cast aluminum, polycarbonate bowl
~600
Metal bowl guard; high-purity applications
MS6-LFM-1/2-ARM-DA
Micro Filter
1/2"
1/2"
0.01 µm
Manual Rotary
Left to Right
900
0–20
-10 to +60
Die-cast aluminum, polycarbonate bowl
~600
Manual drain; for systems with manual maintenance
MS6-LFM-3/8-AUV
Micro Filter
3/8"
3/8"
0.01 µm
Fully Automatic
Left to Right
900
2–12
-10 to +60
Die-cast aluminum, polycarbonate bowl
~600
Compact; ideal for tight spaces
MS6-LFM-1/4-ARV
Micro Filter
1/4"
1/4"
0.01 µm
Manual Rotary
Left to Right
900
2–12
-10 to +60
Die-cast aluminum, polycarbonate bowl
~600
For lower flow systems
MS6-LFM-1/2-BRM-DA
Fine Filter
1/2"
1/2"
1 µm
Manual Rotary
Left to Right
950
2–12
-10 to +60
Die-cast aluminum, polycarbonate bowl
~600
Fine filter; manual drain
MS6-LFM-1/4-BRV
Fine Filter
1/4"
1/4"
1 µm
Fully Automatic
Left to Right
950
2–12
-10 to +60
Die-cast aluminum, polycarbonate bowl
~600
Fine filter; automatic drain
Part Number
Festo Part Number
Thread Size
Filtration Grade
Condensate Drain
Flow Direction
Flow Rate (l/min)
Operating Pressure (bar)
Temperature Range (°C)
Material
Weight (g)
Notes
MS4N-LF-1/4-ERM
1/4" NPT
40 µm
Manual rotary
Left to Right
1700
0–14
-10 to +60
Die-cast aluminum, polycarbonate bowl
189
19 ml condensate capacity
MS4N-LF-1/8-ERM
1/8" NPT
40 µm
Manual rotary
Left to Right
1100
0–14
-10 to +60
Die-cast aluminum, polycarbonate bowl
189
19 ml condensate capacity
MS4N-LF-1/4-ERV
1/4" NPT
40 µm
Fully automatic
Left to Right
1700
2–12
-10 to +60
Die-cast aluminum, polycarbonate bowl
189
19 ml condensate capacity
MS4N-LF-1/4-CRM
1/4" NPT
5 µm
Manual rotary
Left to Right
1700
0–14
-10 to +60
Die-cast aluminum, polycarbonate bowl
189
19 ml condensate capacity
MS4N-LF-1/8-CRM
1/8" NPT
5 µm
Manual rotary
Left to Right
1100
0–14
-10 to +60
Die-cast aluminum, polycarbonate bowl
189
19 ml condensate capacity
MS4N-LF-1/4-CRV
1/4" NPT
5 µm
Fully automatic
Left to Right
1700
2–12
-10 to +60
Die-cast aluminum, polycarbonate bowl
189
19 ml condensate capacity
MS4N-LF-1/4-CUM
1/4" NPT
40 µm
Manual rotary
Left to Right
1700
0–14
-10 to +60
Die-cast aluminum, metal bowl
500
Metal bowl for high durability
MS4N-LF-1/8-EUV
1/8" NPT
40 µm
Manual
Left to Right
1100
0–14
-10 to +60
Die-cast aluminum, polycarbonate bowl
189
19 ml condensate capacity
MS4N-LF-1/4-EUV
1/4" NPT
40 µm
Manual
Left to Right
1700
0–14
-10 to +60
Die-cast aluminum, polycarbonate bowl
189
19 ml condensate capacity
MS4N-LF-1/4-EUM
1/4" NPT
40 µm
Manual
Left to Right
1700
0–14
-10 to +60
Die-cast aluminum, polycarbonate bowl
189
19 ml condensate capacity
MS4N-LFM-1/4-ARM
1/4" NPT
0.01 µm
Manual rotary
Left to Right
360
0–14
-10 to +60
Die-cast aluminum, polycarbonate bowl
454
19 ml condensate capacity
MS4N-LFM-1/4-BRM
1/4" NPT
1 µm
Manual
Left to Right
650
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/8-BRM
1/8" NPT
1 µm
Manual
Left to Right
450
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/8-ARM
1/8" NPT
0.01 µm
Manual
Left to Right
260
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/8-BUV-DA
1/8" NPT
1 µm
Semi-auto
Left to Right
450
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/4-BRM-DA
1/4" NPT
1 µm
Semi-auto
Left to Right
650
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/8-ARM-DA
1/8" NPT
0.01 µm
Semi-auto
Left to Right
260
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/4-ARM-DA
1/4" NPT
0.01 µm
Semi-auto
Left to Right
360
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/8-BUV-DA
1/8" NPT
1 µm
Semi-auto
Left to Right
450
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/4-BUV-DA
1/4" NPT
1 µm
Semi-auto
Left to Right
650
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/8-AUV-DA
1/8" NPT
0.01 µm
Semi-auto
Left to Right
260
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/4-AUV-DA
1/4" NPT
0.01 µm
Semi-auto
Left to Right
360
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/8-AUV-DA-Z
1/8" NPT
0.01 µm
Semi-auto
Left to Right
260
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/4-AUV-DA-Z
1/4" NPT
0.01 µm
Semi-auto
Left to Right
360
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/8-BUV
1/8" NPT
1 µm
Manual
Left to Right
450
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
MS4N-LFM-1/8-AUV
1/8" NPT
0.01 µm
Manual
Left to Right
260
0–14
-10 to +60
Aluminum body, polycarbonate bowl
450
Part Number
FESTO Model
Thread Size
Filtration Grade
Condensate Drain
Flow Direction
Flow Rate (l/min)
Operating Pressure (bar)
Temperature Range (°C)
Material
531526
531526 (MS6N-LF-1/2-CRM)
1/2" NPT
5 µm
Manual rotary
Left to Right
3,200
0–20
-10 to 60
Die-cast aluminum body, polycarbonate bowl with guard
531527 (MS6N-LF-3/8-CRM)
3/8" NPT
5 µm
Manual rotary
Left to Right
3,000
0–20
-10 to 60
Die-cast aluminum body, polycarbonate bowl with guard
531532 (MS6N-LF-1/2-CRV)
1/2" NPT
5 µm
Fully automatic
Left to Right
3,200
2–12
-10 to 60
Die-cast aluminum body, polycarbonate bowl with guard
531533 (MS6N-LF-3/8-CRV)
3/8" NPT
5 µm
Fully automatic
Left to Right
3,000
2–12
-10 to 60
Die-cast aluminum body, polycarbonate bowl with guard
MS6N-LF-1/2-CRM
1/2"
5 µm
Manual
Left to Right
4100
2–12 bar
-10 to +60 °C
Plastic/Metal
MS6N-LF-1/2-CRV
1/2"
5 µm
Semi-Auto
Left to Right
4100
2–12 bar
-10 to +60 °C
Plastic/Metal
531552
MS6N-LF-1/2-CUM
1/2"
5 µm
Manual
Left to Right
4100
2–12 bar
-10 to +60 °C
Plastic/Metal
531553
MS6N-LF-1/2-CUV
1/2"
5 µm
Semi-Auto
Left to Right
4100
2–12 bar
-10 to +60 °C
Plastic/Metal
531554
MS6N-LF-1/2-ERM
1/2"
5 µm
Manual
Left to Right
4100
2–12 bar
-10 to +60 °C
Plastic/Metal
MS6N-LF-1/2-ERV
1/2"
5 µm
Semi-Auto
Left to Right
4100
2–12 bar
-10 to +60 °C
Plastic/Metal
MS6N-LF-1/2-EUM
1/2"
5 µm
Manual
Left to Right
4100
2–12 bar
-10 to +60 °C
Plastic/Metal
MS6N-LF-1/2-EUV
1/2"
5 µm
Semi-Auto
Left to Right
4100
2–12 bar
-10 to +60 °C
Plastic/Metal
536890
MS6N-LFM-1/2-ARM-DA
1/2"
0.01 µm
Manual
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
536891
MS6N-LFM-1/2-ARV
1/2"
0.01 µm
Semi-Auto
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
536892
MS6N-LFM-1/2-ARV-DA
1/2"
0.01 µm
Semi-Auto
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
MS6N-LFM-1/2-AUV
1/2"
0.01 µm
Auto
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
MS6N-LFM-1/2-AUV-DA
1/2"
0.01 µm
Auto
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
MS6N-LFM-1/2-BRM
1/2"
1 µm
Manual
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
536896
MS6N-LFM-1/2-BRM-DA
1/2"
1 µm
Manual
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
536897
MS6N-LFM-1/2-BRV
1/2"
1 µm
Semi-Auto
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
MS6N-LFM-1/2-BRV-DA
1/2"
1 µm
Semi-Auto
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
MS6N-LFM-1/2-BUV
1/2"
1 µm
Auto
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
MS6N-LFM-1/2-BUV-DA
1/2"
1 µm
Auto
Left to Right
3000
2–12 bar
-10 to +60 °C
Plastic
Part Number
Description
Filtration Grade
Compatible Series
MS4-LFP-C
5 µm
MS4-LF
MS4-LFP-E
40 µm
MS4-LF
MS6-LFP-C
5 µm
MS6-LF
MS6-LFP-E
40 µm
MS6-LF
Part Number
Description
Filtration Grade
Compatible Series
MS4N-LF-1/8-CUM
5 µm
MS4N-LF
MS4N-LF-1/4-CUM
5 µm
MS4N-LF
MS4N-LF-1/4-CUV
5 µm
MS4N-LF
MS4N-LF-1/4-EUM
40 µm
MS4N-LF
MS4N-LF-1/4-EUV
40 µm
MS4N-LF
MS4N-LFM-1/4-ARM
0.01 µm
MS4N-LFM
MS4N-LFM-1/4-BUV
1 µm
MS4N-LFM
MS4N-LFM-1/4-BRM
1 µm
MS4N-LFM
MS6N-LF-1/2-CUM
5 µm
MS6N-LF
MS6N-LF-1/2-CRV
5 µm
MS6N-LF
MS6N-LF-3/8-ERM
40 µm
MS6N-LF
MS6N-LFM-1/4-ARV
0.01 µm
MS6N-LFM
MS6N-LFM-1/2-AUV
0.01 µm
MS6N-LFM
MS6N-LFM-3/8-AUV
0.01 µm
MS6N-LFM
MS6N-LFM-1/2-ARM
0.01 µm
MS6N-LFM
MS6N-LFM-1/2-BRM
1 µm
MS6N-LFM
Part Number
Description
Compatible Series
MS4-WR Wall Mounting Bracket
MS4-LF, MS4-LFM
MS4-WP Wall Mounting Bracket
MS4-LF, MS4-LFM
MS6-WR Wall Mounting Bracket
MS6-LF, MS6-LFM
MS6-WP Wall Mounting Bracket
MS6-LF, MS6-LFM
MS4-WP Wall Mounting Bracket
MS4N-LF, MS4N-LFM
MS4-WB Wall Mounting Bracket
MS4N-LF, MS4N-LFM
MS6-WP Wall Mounting Bracket
MS6N-LF, MS6N-LFM
MS6-WB Wall Mounting Bracket
MS6N-LF, MS6N-LFM

Model Overview
Model
Size Filter Type Region/Standard Thread Type Application Use
MS4-LF MS4 Particulate Global Metric Compact filtering needs
MS4-LFM MS4 Micro Filter Global Metric High-purity filtration in compact setups
MS6-LF MS6 Particulate Global Metric High-flow systems
MS6-LFM MS6 Micro Filter Global Metric Fine filtration for large volume systems
MS4N-LF MS4 Particulate North America NPT UL/NFPA-compliant setups
MS4N-LFM MS4 Micro Filter North America NPT Clean air in space-limited systems

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