Your Cart is Empty

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.