String-wound Depth Filter Cartridges

A Long Service Life and High Contaminant Loading Capacity 

Pall’s string-wound depth filters are designed for advanced and efficient particulate removal performance and high contaminant holding capacity. Compared to traditional polypropylene or polyester materials, these filter cartridges use woven media yarn around the core and have high chemical, temperature, and process fluid compatibility. Available with 10+ different medium options these cartridges are also an economical low-cost choice compared to depth and pleated style filters. 

Depth Filter Cartridges
Depth Filter Cartridges
Pleated Filter Cartridges
Pleated Filter Cartridges
String-Wound Filter Cartridges
String-Wound Filter Cartridges

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Cartridge Length (Imperial)

9.75 in

Poly-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Polypropylene, Length 9.75 Inches, EPDM, SOE flat closed end external 222 O-rings product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Polypropylene, Length 9.75 Inches, EPDM, SOE flat closed end external 222 O-rings

Product ID: PFT045975UEM3
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.45 µm

Discontinued

This part is no longer available. Please contact us for more information.

Nexis® A Series Filter Cartridges, Removal Rating 3 μm, Polypropylene, Length 9.75 inches

Product ID: NXA3975U
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
3 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
9.75 in
Cartridge Length (Metric)
248 mm
Cartridge Length (Metric)
24.8 cm
Gasket / O-Ring Material
NA
See All Attributes

Duo-Fine® II, Filter Cartridges, Removal Rating 10 μm, Length 9.75 Inches, Nitrile, Blank - DOE with elastomer gasket seals & end caps

Product ID: DFNT10975UN
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
10 µm
Cartridge Length (Imperial)
9.75 in
Cartridge Length (Metric)
248 mm
Cartridge Length (Metric)
24.8 cm
Gasket / O-Ring Material
Nitrile
End Configuration
Blank - DOE with elastomer gasket seals & end caps
See All Attributes
Poly-Fine® II, Filter Cartridges, Removal Rating 10 μm, Polypropylene, Length 9.75 Inches, EPDM, SOE flat closed end external 226 O-rings product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 10 μm, Polypropylene, Length 9.75 Inches, EPDM, SOE flat closed end external 226 O-rings

Product ID: PFT10975UEM6
Unit of Measure
1/EA
Min Order Qty
1
Micron
10 µm
Nexis® A Series Filter Cartridges, Removal Rating 0.5 μm, Polypropylene, Length 9.75 inches product photo

Nexis® A Series Filter Cartridges, Removal Rating 0.5 μm, Polypropylene, Length 9.75 inches

Product ID: NXA05975UH21
Unit of Measure
30/EA
Min Order Qty
30
Micron
0.5 micron
Poly-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Polypropylene, Length 9.75 Inches, EPDM, DOE industrial product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Polypropylene, Length 9.75 Inches, EPDM, DOE industrial

Product ID: PFT045975UE
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.45 µm

Nexis® T Filter Cartridges, Removal Rating 3 μm, Polypropylene, Length 9.75 inches

Product ID: NXT3975U
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
3 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
9.75 in
Cartridge Length (Metric)
248 mm
Cartridge Length (Metric)
24.8 cm
Gasket / O-Ring Material
NA
See All Attributes

Nexis® T Filter Cartridges, Removal Rating 15 μm, Polypropylene, Length 9.75 inches

Product ID: NXT15975U
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
15 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
9.75 in
Cartridge Length (Metric)
248 mm
Cartridge Length (Metric)
24.8 cm
Gasket / O-Ring Material
NA
See All Attributes
DFT Classic®, Filter Cartridges, Removal Rating 3 μm, Length 9.75 Inches, 304 stainless steel product photo

DFT Classic®, Filter Cartridges, Removal Rating 3 μm, Length 9.75 Inches, 304 stainless steel

Product ID: C003A975AC
Unit of Measure
30/EA
Min Order Qty
30
Packaging
Bulk
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Nexis® T Filter Cartridges, Removal Rating 1 μm, Polypropylene, Length 9.75 inches

Product ID: NXT1975U
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
1 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
9.75 in
Cartridge Length (Metric)
248 mm
Cartridge Length (Metric)
24.8 cm
Gasket / O-Ring Material
NA
See All Attributes
Poly-Fine® II, Filter Cartridges, Removal Rating 10 μm, Polypropylene, Length 9.75 Inches, EPDM, DOE industrial product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 10 μm, Polypropylene, Length 9.75 Inches, EPDM, DOE industrial

Product ID: PFT10975UE
Unit of Measure
1/EA
Min Order Qty
1
Micron
10 µm
Claris® Filter Cartridges, Removal Rating 30 μm, Polypropylene, Length 9.75 inches product photo

Claris® Filter Cartridges, Removal Rating 30 μm, Polypropylene, Length 9.75 inches

Product ID: CLR30975
Unit of Measure
36/EA
Min Order Qty
36
Length
24.8 cm / 9.75 in
Micron
30 micron
72 Items

Description

String-wound filter cartridges are a type of depth filter cartridge that is made by weaving yarn (cotton, glass fiber, polypropylene, polyester, nylon, and polyphenylene sulfide (PPS))around a core usually of 304 SS or 316 SS. 

Product Highlights:
  • High chemical and temperature compatibility
  • 10+ different medium options 
  • Economical choice

Specifications

Product Attributes Values
String-Wound Filters Filter Medium
  • Bleached cotton
  • Standard cotton
  • Natural cotton
  • Glass fiber
  • Heat purified glass fiber
  • Premium polypropylene
  • Standard polypropylene
  • Rayon
  • Polyester
  • Nylon
  • Acrylic
  • Polyphenylene sulfide (PPS)
  • Polytetrafluoroethylene (fluoropolymer)

Filter Grade Range

 0.5 μm to 350 μm
Length 10.2 cm (4 in.) to 127 cm (50 in.)

Applications/Uses

Pall’s string-wound filter cartridges are used for a variety of applications, including chemicals and polymer, oil and gas, and microelectronics.

Chemicals and Polymer

  • Midstream Process Water 
  • Poly Commodity Raw Material (Fluids)
  • Poly Commodity Intermediates (Fluids)
  • Poly Engineered & Special Raw Material (Fluids)
  • Poly Engineered & Special Intermediate (Fluids)

Oil and Gas

  • Upstream Offshore Boiler Water
  • Upstream Offshore Produced Water
  • Upstream Onshore Produced Water
  • Upstream Onshore Surface Discharged Water
  • Midstream Process Water
  • Upstream Injection Water & SRU

Microelectronics

  • Acid etch systems - including Piranha Etch Solvent Strip applications
  • Most aggressive and/or high temperature acids or solvents

Chemicals

  • Polishing of chemical solutions
  • Bulk industrial chemicals
  • Solvents
  • Acids
  • Bases
  • Monomers
  • Process and cooling water

Magnetic Coatings

  • Audio
  • Video & computer tape
  • Floppy discs
  • Computer hard discs
  • Solvents

Photographic

  • Photo emulsions
  • Chemicals
  • Wash & rinse water

Oil Production

  • Well completion fluids
  • Water flood

Air & Gas

  • Compressed air
  • Instrument air
  • Nitrogen
  • Hydrogen
  • Helium
  • Freon
  • Most corrosive gases

Other

  • Solution mining
  • Deep well disposal
  • Paint
  • Ink & coatings
  • Lubricating oils
  • Electropolishing solutions
  • Plating solutions
  • Pigments & dyes
  • Cleaning fluids
  • Adhesives

FAQs

1. Which are the two series that Pall offers for string-wound filters?

Pall offers string-wound filters in the DFT Classic and Encore Series.

 

2. Why choose Pall’s string-wound depth filters?

Pall’s string-wound depth filters are designed for advanced and efficient particulate removal performance and high contaminant holding capacity. These filter cartridges have high chemical, temperature, and process fluid compatibility compared to traditional polypropylene or polyester materials and come with 10+ different medium options.