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Pentek® C1 Series 20" × 2½", 5 Micron Dual Purpose Carbon Cartridge

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  In Stock
  •   Model # C1-20
  •   Part # 155597-43
  •   Brand Pentek
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Filtered Water Benefits the Whole Family
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C Series cartridges offer an economical solution for all of your general-purpose water filtration needs. Constructed of a carbon impregnated cellulose media, these dual-purpose cartridges filter out fine sediment particles and reduce unwanted taste, odor and chlorine taste and odor from your tap water.* A polyester reinforcement backing and external netting provide additional strength and dirt-loading capacity.

C Series cartridges are available in three different sizes and two (2) different micron ratings. Both the C1 and C2 are nominally rated at 5-microns, the C8 is nominally rated at 1-micron.

These dual-purpose cartridges are well suited for a wide range of residential applications, and make excellent polishing filters when used in process or closed-loop streams.


  • Economically priced
  • Provides sediment filtration, bad taste & odor and chlorine taste & odor reduction*
  • High dirt-holding capacity
  • Available in three sizes and two micron ratings
  • Recommended for chlorinated water supplies
Model Maximum Dimensions Nominal µm Rating* Initial ΔP @ Flow* Chlorine Capacity @ Flow*
C1 9-3/4" × 2-1/2" 5 µm 4.0 psid @ 5.0 GPM >2,500 gal @ 1.0 GPM
C1-20 20" × 2-1/2" 5 µm 1.0 psid @ 5.0 GPM >5,000 gal @ 2.0 GPM
C2 4-7/8" × 2-1/2" 5 µm 2.0 psid @ 2.0 GPM >5,000 gal @ 1.0 GPM

* Based on manufacturer's internal testing.