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Microfiber Filter Bags (High-Efficiency Filters)

High-efficiency microfiber liquid filter bags from Custom Filtration Solutions (CFS) provide absolute-rated performance for polish-level filtration at low differential pressure. These multilayer bags use meltblown microfiber with optional prefilter zones to extend life, improve dirt-holding capacity, and deliver efficiencies up to 95% at the rated micron. Available in polypropylene (POMF) and polyester (PEMF) constructions, with multiple ring and flange styles to fit standard housings.

Why Choose High-Efficiency Microfiber Bags

  • Micron ratings from 0.5A to 90A (absolute-rated family)
  • Industry standard and custom sizes available
  • Choice of steel ring or plastic flange styles
  • Wide chemical compatibility
  • Excellent oil-absorbing capability (application dependent)
  • Handles available on ring-style bags
  • Typical efficiencies to 95% at rating

High-Efficiency Bag Materials

Microfiber media provide high efficiencies at low micron ratings. An optional needle-punched felt prefilter layer can be added to create a graded-density profile, increasing surface area and extending service life. The multilayer construction balances fine capture with low pressure drop.

Bag Styles

Ring-style bags are supplied with a galvanized steel ring (stainless steel optional) sewn into the top of the bag and include a handle. Plastic collar (flange) styles use a specially designed flange sewn to the top of the bag for positive sealing in compatible housings.

High-Efficiency Materials & Micron Ratings (95% Min)

Material .5A 1A 2A 5A 10A 25A 50A 90A
Polypropylene (POMF)
Polyester (PEMF)

Ordering Information

Standard Sizes & Dimensions

Size Diameter Length
P1 7″ 16″
P2 7″ 32″
P3 4″ 8″
P4 4″ 14″
P5 4″ 24″
P7 5.5″ 15″
P8 5.5″ 31″
P11 8.5″ 16″
P12 8.5″ 32″
C1 7.3″ 16.5″
C2 7.3″ 32.5″
RP-1 8″ 30″
RP-2 8″ 40″
PC-1 9″ 30″
PC-2 9″ 40″
X01 6″ 22″

Ring / Flange Styles

Code Description
S Galvanized Steel Ring
SS Stainless Steel Ring
PP Polypropylene Ring
T Titanium Ring
P CFS P-Flange (plastic collar)
F CFS F-Flange (plastic collar)
OSS CFS OSS Flange
NR No Ring
E Santoprene Rubber Flange

Options

Code Option Notes
H Handle Standard on all ring-style bags
Prefilter Needle-punched felt layer Creates graded density; extends life

How to Specify

Build the part number as: [Media] [Absolute Micron] [Bag Size] [Ring/Flange] [Options].

Example: POMF 5A P1 S H

Typical Applications

  • Final polishing of process water, chemicals, and coatings
  • Fine particulate control before RO/UF membranes
  • Food & beverage polish filtration (verify compliance requirements)
  • Electronics, inks, resins, and specialty chemicals
  • Oil haze reduction (application dependent)

Replacement Manufacturers (Liquid Filter Bags)

CFS provides direct-fit replacements for most major liquid filter bag brands. If your brand is not listed, send us the part number or a photo and we will cross-reference it.

Replacement Manufacturers
3M Parker Hannifin Strainrite FSI (Filter Specialists Inc.)
Hayward GE / Pentair Shelco Filters Eaton (LOFCLEAR / DURAGAF / GAF)
Meissner Amazon Filters Pall Corporation Global Filter
Other OEMs (contact CFS for cross-reference)

Request a Quote

Provide your housing size, desired absolute micron, flow rate, temperature, and chemistry. A CFS specialist will confirm the correct POMF/PEMF media, bag size, and ring/flange for a direct fit. Contact Custom Filtration Solutions.