Rosedale Membrane Pre-filters

for filtration to 1.0 micron

Rosedale’s Graded Density (GD) Fat Bags® bags have approximately four times the dirt holding capacity of our Beta Bags at equivalent filtration levels.

These bags have 9 layers of micro-fiber material, each with 4.4 sq. ft. of surface area. You can now use bags where dirt carrying needs previously required cartridges.

Bags cost less, are easier to install and remove, require less room in storage and disposal, and prevent the contaminant wash off downstream associated with cartridges.

These bags offer excellent results when used as a pre-filter for membrane filtration. It will retain a large quantity of contaminant that will unnecessarily clog the membrane.

The bags are available in either all polyester for all polypropylene construction. Polyester should be used where oil adsorption is not desirable or where higher temperatures are required.

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