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Pentair Pentek S1 Series Cartridges are manufactured from a pleated cellulose media and are designed for general water filtration purposes. The media is pleated around a polypropylene core for added strength. The pleated endcaps of the standard cartridges are immersed in a thermosetting vinyl plastisol. The Big Blue cartridges have a molded endcap with gaskets. The pleated ends are sealed to the endcap with a thermoplastic adhesive. The overlap seam is sonically welded to reduce bypass, improving filtration efficiency. S1 Series Cartridges are economically priced and highly effective at reducing sediment particles down to 20 microns in size


  • 20 micron medium sediment water filter
  • The Pentek S1 water filters reduce sand, sediment, silt, rust particles, and scale particles
  • Pleated design maximizes dirt holding capacity
  • Recommended for chlorinated water supplies
  • The media is pleated around a polypropylene core for added strength and the ends are immersed in a thermo-setting vinyl plastisol.
  • An external netted sheath helps retain uniform pleat spacing in high flow and pulsating flow streams.
  • Designed for general water filtration purposes.

    Specification :

    Available in 4 model. 

    Model Dimensions Rating
    Inital ∆P (PSI)
    @Flow Rate (GPM)
    S1 2,63" x 9,75" 20 micron 2,4 psi @10 gpm
    (0,17 bar @38 Lpm)
    S1-20 2,63" x 20" 20 micron 0,8 psi @10 gpm
    (0,06 bar @38 Lpm) 
    S1-BB 4,50" x 9,75" 20 micron 1.2 psi @10 gpm
    (0,08 bar @38 Lpm)
    S1-20BB 4,50" x 20" 20 micron 1.2 psi @10 gpm
    (0,08 bar @38 Lpm)

      Pleated Cartridges Constructions:

      • Filter Media            : Resin-Impregnated Cellulose
      • Standard Caps        : Vinyl Plastisol
      • Big Blue Endcaps    : Polypropylene
      • Core                        : Polyethylene

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