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Triple Big White/Blue Polyspun Sediment Filter Cartridge MWF 20″ x 4.5″


This pleated cellulose 20 x 4.5 inches Big Blue water filter cartridge is manufactured from durable, non-woven polyester material. Therefore, it's suitable for a wide range of filtration uses.


  • Sediment + 2x Carbon Block Cartridges
  • The pleated design increases surface area and maximizes dirt holding capacity
  • Can be washed with clean water to increase the effective lifespan
  • Polyester cellulose media is bacteria and chemical resistant
  • Versatile and reusable, allowing for a variety of uses
  • Low-pressure drop and high flow rate

  • The filter media has a pleated design around a polypropylene core for added strength and the ends are completely molded into a vinyl plastisol base (big blue housing). Embedding and sealing each end of the pleated media in this fashion fuses the three components together forming a unified end cap and gasket.

    The overlap seam is sonically welded to reduce internal bypass improving filtration efficiency. There are available replacement cartridges when it's time for a replacement.

    The 20" x 4.5" Full Flow/Big Blue version has more than 16 square feet of filtration surface area. The media is pleated to maximize dirt-holding capacity and extend the time period between changes or cleaning.

    Customer Reviews

    Based on 6 reviews
    Davion Macejkovic
    Great product

    Great product. It filters out sediment and impurities from my water effectively, leaving it clear and clean.

    Roderick Kirlin
    Really Effective

    It removes impurities from the water and maintains its effectiveness over time. I would highly recommend it to anyone in need of a reliable replacement pack.

    Reuben Serenze

    It has consistently delivered excellent performance.

    Evert Mcdermott
    Great Savings

    Easy to install and lasts a long time, making it a great value.

    Fresh Water

    Makes water fresher and softer. It also removes all traces of metals and chlorine from water.