S1 Series Replacement Cartridges


S1 Series cartridges are pleated cellulose sediment cartridges. The S1-10 is designed for most standard 10" filter housings; S1-20 for most standard 20" filter housings; and S1-20BB for most 20" Big Blue filter housings.

  • Pleated design maximizes dirt-holding capacity
  • Designed for general water filtration purposes
  • Economically priced
  • Nominal 20-micron rating

Products


9-3/4" Pentek S1 Pleated Cellulose 20 mic Filter9-3/4
Part Number: 155001-43
Alternate Part Number: 155001-131, 255974-06
  • Length: 9-3/4" (24.8 cm)
  • Outer Diameter: 2.625"
  • Filter Media: Resin Impregnated Cellulose
  • Filter Application: Sediment/Dirt/Rust
  • Micron Rating (Nominal): 20 µm
  • Flow Rate: 10 gpm
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$5.35 - $87.36

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20" Pentek S1-20 Pleated Cellulose 20 mic Filter20
Part Number: 155303-43
  • Length: 20" (50.8 cm)
  • Outer Diameter: 2.625"
  • Filter Media: Resin Impregnated Cellulose
  • Filter Application: Sediment/Dirt/Rust
  • Micron Rating (Nominal): 20 µm
  • Flow Rate: 10 gpm
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MSRP: $9.94
$8.39 

14+ for $7.97 ea

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10" BB Pentek S1-BB Pleated Cellulose 20 mic Filter10
Part Number: 155405-43
10" BB Pentek S1-BB Pleated Cellulose 20 mic Filter Features: 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...
  • Length: 9-3/4" (24.8 cm)
  • Outer Diameter: 4.5" (11.4 cm)
  • Filter Media: Resin Impregnated Cellulose
  • Filter Application: Sediment/Dirt/Rust
  • Micron Rating (Nominal): 20 µm
  • Flow Rate: 10 gpm
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MSRP: $12.40
$8.45 

8+ for $8.07 ea

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20" BB Pentek S1-20BB Pleated Cellulose 20 mic Filter20
Part Number: 155305-43
20" BB Pentek S1-20BB Pleated Cellulose 20 mic Filter Features: 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...
  • Length: 20" (50.8 cm)
  • Outer Diameter: 4.5" (11.4 cm)
  • Filter Media: Resin Impregnated Cellulose
  • Filter Application: Sediment/Dirt/Rust
  • Micron Rating (Nominal): 20 µm
  • Flow Rate: 10 gpm
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MSRP: $22.13
$16.96 

6+ for $16.11 ea

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S1 10" Standard Fits in the following filter housings: Culligan (HF-150, HF-160, HF-360, RO-2127), Omni (U25, OB1, OB5), Cuno, AquaPure, Sears, Fulflo, Teledyne Water Pik, Ace, Master Plumber, Flotec, Honeywell, General Electric, American Plumber, and most other water filter housings with 9.75" x 2.5" filters.

S1 filter is the same as: Culligan S1 or S1a, USFilter/Ametek/Kleen-Plus S1, Sears, American Plumber W20CLa, Ace Hardware 49641, MasterPlumber TrueValue 614-800, Flotec RS2, and GE FXWPC

The media is pleated around a polypropylene core for added strength and the ends are immersed in a thermo-setting vinyl plastisol. Embedding and sealing each end of the pleat in this fashion fuses the three components together forming a unitized end cap and gasket.

An external netted sheath helps retain uniform pleat spacing in high flow and pulsating flow streams. The overlap seam is sonically welded to reduce bypass improving filtration efficiency.
For a less costly alternative filter, use the Omni #RS-1DS filter below.

S1 Series Product Profile