Festo

FESTO MS Series Filter Regulators

Clean, Consistent Air – Engineered for Efficiency The Festo MS Series Filter Regulators combine filtration and pressure regulation into a single, compact unit—offering a reliable and space-saving solution for compressed air systems. Designed for precision and durability, the MS Series ensures your downstream equipment receives clean, stable air pressure to maximize performance and extend service life.

Part Number
Model Number
OKCancelClear All
Thread Size
OKCancelClear All
Filtration Grade
OKCancelClear All
Condensate Drain
OKCancelClear All
Flow Direction
OKCancelClear All
Flow Rate (l/min)
OKCancelClear All
Operating Pressure (bar)
OKCancelClear All
Temperature Range (°C)
OKCancelClear All
Material
OKCancelClear All
529144
MS4-LFR-1/4-D6-CRM-AS
G 1/4
5 µm
Manual
Left to Right
1,800
0.3–7
-10 to +60
Polycarbonate Bowl
529148
MS4-LFR-1/4-D6-ERM-AS
G 1/4
40 µm
Manual
Left to Right
1,800
0.3–7
-10 to +60
Polycarbonate Bowl
529146
MS4-LFR-1/4-D6-CRV-AS
G 1/4
5 µm
Automatic
Left to Right
1,800
0.3–7
-10 to +60
Polycarbonate Bowl
529150
MS4-LFR-1/4-D6-ERV-AS
G 1/4
40 µm
Automatic
Left to Right
1,800
0.3–7
-10 to +60
Polycarbonate Bowl
529152
MS4-LFR-1/4-D7-CRM-AS
G 1/4
5 µm
Manual
Left to Right
1,800
0.5–12
-10 to +60
Polycarbonate Bowl
529156
MS4-LFR-1/4-D7-ERM-AS
G 1/4
40 µm
Manual
Left to Right
1,800
0.5–12
-10 to +60
Polycarbonate Bowl
529154
MS4-LFR-1/4-D7-CRV-AS
G 1/4
5 µm
Automatic
Left to Right
1,800
0.5–12
-10 to +60
Polycarbonate Bowl
529158
MS4-LFR-1/4-D7-ERV-AS
G 1/4
40 µm
Automatic
Left to Right
1,800
0.5–12
-10 to +60
Polycarbonate Bowl
529180
MS6-LFR-1/2-D6-ERM-AS
G 1/2
40 µm
Manual
Left to Right
6,500
0.8–20
5 to +60
Polycarbonate Bowl
529182
MS6-LFR-1/2-D6-ERV-AS
G 1/2
40 µm
Automatic
Left to Right
6,500
0.8–20
5 to +60
Polycarbonate Bowl
529184
MS6-LFR-1/2-D7-CRM-AS
G 1/2
5 µm
Manual
Left to Right
6,500
0.5–12
5 to +60
Polycarbonate Bowl
529186
MS6-LFR-1/2-D7-ERM-AS
G 1/2
40 µm
Manual
Left to Right
6,500
0.5–12
5 to +60
Polycarbonate Bowl
529188
MS6-LFR-1/2-D7-CRM-AS
G 1/2
5 µm
Manual
Left to Right
6,500
0.5–12
5 to +60
Polycarbonate Bowl
529190
MS6-LFR-1/2-D7-ERM-AS
G 1/2
40 µm
Manual
Left to Right
6,500
0.5–12
5 to +60
Polycarbonate Bowl
529192
MS6-LFR-1/2-D7-EUM-AS
G 1/2
40 µm
Manual
Left to Right
6,500
0.5–12
5 to +60
Polycarbonate Bowl
529194
MS6-LFR-1/2-D7-EUV-AS
G 1/2
40 µm
Automatic
Left to Right
6,500
0.5–12
5 to +60
Polycarbonate Bowl
531229
MS4N-LFR-1/4-D6-CRM-AS
G 1/4
5 µm
Manual
Left to Right
1,700
0.8–12
-10 to +60
Polycarbonate Bowl
531213
531217
MS4N-LFR-1/4-D7-CRV-AS
G 1/4
5 µm
Automatic
Left to Right
1,700
0.8–12
-10 to +60
Polycarbonate Bowl
531282
MS6N-LFR-1/2-D7-CRM-AS
G 1/2
5 µm
Manual
Left to Right
4,800
0.8–20
-10 to +60
Polycarbonate Bowl
531283
MS6N-LFR-3/8-D7-CRM-AS
G 3/8
5 µm
Manual
Left to Right
3,500
0.5-12
-10 to +60
Polycarbonate Bowl
531276
MS6N-LFR-1/2-D7-ERV-AS
G 1/2
40 µm
Automatic
Left to Right
4,800
0.8–20
-10 to +60
Polycarbonate Bowl
531288
MS6N-LFR-1/2-D7-CRV-AS
G 1/2
5 µm
Automatic
Left to Right
4,000
2-12
-10 to +60
Polycarbonate Bowl
531289
MS6N-LFR-3/8-D7-CRV-AS
G 3/8
5 µm
Automatic
Left to Right
3,500
0.5-12
-10 to +60
Polycarbonate Bowl
546118
MS9-LFR-G-D7-EUM-AG-BAR-AS
G 1
40 µm
Manual
Left to Right
9,200
0.8–20
-10 to +60
Metal Bowl
564121
MS9-LFR-G-D7-CUV-AG-BAR-AS
G 1
5 µm
Automatic
Left to Right
9,200
0.8–20
-10 to +60
Metal Bowl
Part Number
Model Number
OKCancelClear All
Series
OKCancelClear All
Thread Size
OKCancelClear All
Filtration Grade
OKCancelClear All
Condensate Drain
Flow Direction
Flow Rate (l/min)
OKCancelClear All
Operating Pressure (bar)
OKCancelClear All
Temperature Range (°C)
OKCancelClear All
Material
529100
MS2-LFR-1/8-D6-ERM-AS
MS2-LFR
G 1/8
40 µm
Manual
Left to Right
600
0.3–7
-10 to +60
Plastic/Polycarbonate
529144
MS4-LFR-1/4-D6-CRM-AS
MS4-LFR
G 1/4
5 µm
Manual
Left to Right
1800
0.3–7
-10 to +60
Plastic/Polycarbonate
529180
MS6-LFR-1/2-D6-ERM-AS
MS6-LFR
G 1/2
40 µm
Manual
Left to Right
6500
0.8–20
5 to +60
Plastic/Polycarbonate