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.
Features:
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.