Parker Finite Filters: H-Series

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Step 2: Determine your media grade

Choose a grade

Grade 4

Grade 6 (Standard)

Grade 8

Grade 10

Parker Finite’s media grade 4 is usually chosen when an extremely high coalescing efficiency is required. Its 99.995% rating is the best available and is ideal for use as a final filter in applications with elevated operating pressures (up to 500 PSIG), or when removing liquid contaminants from gases that are lighter than compressed air. Grade 6 filters are recomended when a “total removal of liquid aerosols and suspended fines” is required. Because of its overall performance characteristics, grade 6 is most often recommended in industrial applications. This grade is an excellent choice as a prefilter for regenerative desiccant air dryers, as it stops oil or varnish from coating the desiccant. Grade 8 filters combine high flow rate with high efficiency (98.5%) and long element life. A separate prefilter is not necessary for “normal to light” particulate loading. A grade 8 element is often recommended as protection for refrigerated air dryers. This element allows the dryer to maintain efficiency by preventing the coating of copper coils with the buildup of varnish or oil. Grade 10 filters are used as prefilters for grades 6 or 8 to remove large amounts of liquid or tenacious aerosols. Grade 10 is referred to as a coarse coalescer, or precoalescer. A grade 10 filter in a media type D filter element is recommended as an after filter for heat regenerated desiccant type air dryers as its one micron rating is perfect for collecting air dryer desiccant fines before they pass downstream.

Finite Media Specifications

Grade Designation

Coalescing Efficiency 0.3 to 0.6 Micron Particles

Maximum Oil Carryover1 PPM w/w

Micron Rating

Pressure Drop (PSID)
@ Rated Flow2

Media Dry

Media Wet With 10-20 wt. oil

4 99.995% 0.003 0.01 1.25 3-4
6 99.97% 0.008 0.01 1.0 2-3
ME 99.95% 0.02 0.3 0.5 1.0
7 99.5% 0.09 0.5 0.25 0.5-0.7
8 98.5% 0.2 0.5 0.5 1-1.5
10 95% 0.85 1.0 0.5 0.5
100WS 99+%3 N/A 100 <0.25 <0.25
3P N/A N/A 3.0 0.25 N/A
A 99+%4 N/A 3.0 1.0 N/A
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