Bag Filters are a low cost method of filtration. Filter bags are a preferable alternative to cartridge filtration for applications with a high flow rate, high temperature, or a highly viscous liquid. Pearl Filtration stock and manufacture a wide range of filter bag sizes and offer nominal micron ratings in either needlefelt or monofilament filter media.


Standard filter bags are equipped with either a plastic collar or stainless steel metal ring to positively seal within the filter housing. All standard bag filters have a handle for quick and simple removal and disposal.


Filter bags are ideal for many industries and applications including; chemical, dairy, food & beverage, paints & coatings, pharmaceutical, and water & wastewater treatment.

polyester & polypropylene felt filter bags in all standard sizes

Non-Woven Needlefelt Bags

Polyester   Polypropylene

Needlefelt is typically 2 mm thick designed to trap particles throughout the depth of the media. The options of polyester or polypropylene allow a broad chemical and temperature compatibility range. Filter bag construction can be either welded or sewn. Plastic collar or stainless steel ring options available.


Micron rating range: 0.5, 1, 3, 5, 10, 25, 50, 100, 200

nylon (& polyester) monofilament filter bags in all standard sizes

Woven Monofilament Bags

Nylon   Polyester

Monofilament is a mesh style material that filters particles at the surface of the media. Single strands of material are woven together to form a consistent pore size and high mechanical strength. Available in either nylon or polyester to cover a wide range of chemical compatibilities. Stitched filter bag construction. Plastic collar or stainless steel ring options available.


Micron rating range: 50, 80, 100, 125, 150, 180, 200, 250, 300, 350, 400, 500, 600, 700, 800, 1000, 1250

Standard bag filters are stocked in all the below sizes. Option of either plastic collar or stainless steel ring.

Filter material available:

  • Polyester Needlefelt
  • Polypropylene Needlefelt
  • Nylon Monofilament
  • Polyester Monofilament
Filter SizeLengthDiameterHousing Used
Size 116"7"717
Size 232"7"732
Size 38"4"408
Size 414"4"415
Size 520"6"HPP 100B (or X100)

We stock a range of filter bags to retrofit FSI (and equivalent) housings, including X100.


Bag filters can be manufactured to customised dimensions. See our Custom Made Filter Bags page for more information.

Download our product catalogue on Liquid Filtration

Pearl Filtration Brochure Liquid Filtration

activated carbon bag filter

Pearl Filtration stock and manufacture an expansive range of filter bags ideal for highly viscous applications or as an inexpensive filtration solution. Polyester, polypropylene, and nylon materials are all available to provide compatibility with several contrasting liquids and chemicals. Specialised bag filters such as; absolute rated, extended life, and carbon bags are available in all standard sizes. Bag filters can be housed within our range of stainless steel and plastic housings.

filter bag housings stainless steel swing bolt

Pearl Filtration hold a substantial inventory of housings to suit our filter bags, available in either stainless steel (304/316) or plastic. A variety of inlet/outlet port options (BSP, Tri-clover, ANSI Flange), O-ring materials (Buna-N, EPDM, Silicone, Viton), sealing methods (clamp/swing bolt) are available.

chemical, dairy, paint, food, beverage, pharmaceutical filters

Pearl Filtration supply filter elements and systems to a large and varied field of industries. Our products are often available in a range of diverse materials to ensure they are compatible with many different applications.