Filter Micron Ratings Explained (What to Choose for Your System)

Micron rating, efficiency, media type, and differential pressure—how to select filters that protect equipment without restricting flow.

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A smaller micron rating means finer filtration, but efficiency depends on the test method and media.

Choose based on:

• Flow rate requirements
• Contaminant type (dust, metal, water)
• Operating pressure
• Temperature
• Chemical compatibility

Always verify the housing and seal style—many filters share similar dimensions but use different gasket designs.

Need spec limits? Technical Data. Need equivalents? Cross Reference.