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Red Festo filter regulator unit in boxed packaging

Festo

Festo MS4-LFR-1/4-D6-ERV-AS-Z 529151 filter regulator

SKU CH-1AES-20198 MPN MS4-LFR-1/4-D6-ERV-AS-Z

Filter regulator cleans and controls compressed air pressure in pneumatic systems

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Genuine Festo filter regulator ensures reliable pneumatic control
  • New condition guarantees full factory performance and longevity
  • Compact 1/4-inch port fits standard compressed-air systems
  • Red finish provides quick visual identification in workshop
  • Supplied as a single packed unit for immediate use

Festo MS4 Filter Regulator 529151

The Festo MS4-LFR-1/4-D6-ERV-AS-Z is a filter regulator designed for pneumatic air preparation. It combines particle filtration and pressure regulation in a single compact unit. The red housing identifies it as part of the MS4 series. It is supplied new in a single pack.

Suits pneumatic control systems

This unit suits engineers building or maintaining compressed air circuits that require clean, regulated pressure. It is not for hydraulic or liquid media applications. Buyers needing integrated lubrication should look at alternative configurations. Systems requiring different port sizes or pressure ranges need other models.

G 1/4 port connection

The regulator features a G 1/4 threaded port for standard pneumatic fittings. This connection size determines compatibility with existing tubing and manifold layouts. Verify the thread standard matches your installation before purchasing. The 529151 part number confirms the exact variant.

How it compares

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Price $95.99
Typical for this category: the median of 5,006 items is $95.99.

Specifications

Product
Brand nameFESTO
Model nameMS4-LFR-1/4-D6-ERV-AS-Z
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What compressed-air supply connection does the MS4-LFR-1/4-D6-ERV-AS-Z need to operate?

The regulator has a G 1/4 port, so you must provide a matching 1/4-inch BSP threaded airline or adapter.

Can the 529151 filter regulator be installed upstream of legacy pneumatic cylinders?

Yes, it delivers filtered, pressure-regulated air compatible with standard pneumatic actuators.

How do I verify the MS4-LFR-1/4-D6-ERV-AS-Z is regulating pressure correctly after installation?

Check the built-in pressure gauge; the needle should settle at your set value and hold steady during demand.

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