20 X 4.5 Pleated Cellulose Replacement Filter by Tier1 (20 micron)

20 X 4.5 Pleated Cellulose Replacement Filter by Tier1 (20 micron)

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Fits most stand housings built for 20-inch x 4.5 inch filter cartridges

  • Ships fast!
  • Designed compatibility with the Pentek S1-20BB
  • Pleated Cellulose filter media is made from natural materials
  • For best performance, replace every 6 months or 24,000 gallons
  • For best performance, replace every 6 months or 24,000 gallons
  • Tier1 filter cartridges are manufactured to be big on performance, not on price
Price: $16.99 (Retail Price: $26.99 )
20 X 4.5 Pleated Cellulose Replacement Filter by Tier1 (20 micron) is available for purchase in increments of 1
    • Quantity
    • Unit Price
    • 1 - 2
    • $16.99
    • 3 - 5
    • $16.49
    • 6 +
    • $15.99
  • Ships fast!
  • Designed compatibility with the Pentek S1-20BB
  • Pleated Cellulose filter media is made from natural materials
  • For best performance, replace every 6 months or 24,000 gallons
  • For best performance, replace every 6 months or 24,000 gallons
  • Tier1 filter cartridges are manufactured to be big on performance, not on price

Tier1 S20-20 Filter Advantages

The Pentek S1-20BB comparable by Tier1 is a 20 x 4.5 inch whole house water filter for residential applications that require reduction of dirt, silt, sediment, rust, and scale. Pleated Cellulose filter media headlines this 20 micron replacement filter that will meet your filtering challenges head on. Cellulose filtering media is made from natural sources such wood pulp fiber. Install this whole house cartridge to receive filtered water to every room in your home. with easy replacement steps, exchanging your filter is simple and hassle free. Order your replacement S20-20 pleated cellulose filter today!

Pleated Filter Design

The Tier1 S20-20 uses pleated filter design to maximize contaminant exposure to filter media. More time along the media allows for higher capture and retention of unwanted contaminants. This also allows for greater amounts of larger particles of sediment and sand to collect within the pleats of the filter. This pleated design enhances structural stability and helps increase the performance of the filter.

Standardized Sized Filter

The 20 X 4.5 pleated cellulose replacement filter by Tier1 is built to fit 20-inch x 4.5-inch filter housings. This standard sizing allows this filter to easily replace existing styles of whole house filters for housings requiring 20 x 4.5 inch filters. The S20-20 goes to work immediately providing cleaner, fresher water for up to six months. Enjoy cleaner better water with your whole house replacement filter today.

NOTE: Cellulose filters are intended for municipal/city water applications. It is not recommended to use these filters for well water situations.

Reduces the following contaminants:
  • Dirt
  • Particles
  • Sand
  • Sediment
  • Silt
Used In Brands Pentek, Tier1
Manufacturer's Id S20-20
UPC 700355940906
Advertised Size (in) 20 x 4-1/2
Actual Size (in) 20 inches (length) x 4 1/2 inches (outside diameter)
Actual Size (cm) 50.8 x 11.43
Media Pleated Cellulose
Primary Filter Media Pleated Cellulose
Filter Life (gallons) 24,000
Filter Life (liters) 90,849.84
Filter Life (months) 6 months
Micron Rating (Nominal) 20
Operating Temperature (°F) 40 - 145
Operating Temperature (°C) 4.4 - 62.8
Flow Rate (gpm) 10
Flow Rate (lpm) 37.854
Color / Finish Blue / White
Warranty Guarantee Unconditional Product Guarantee for Life of the Product
Includes One 20 X 4.5 Inch 20 Micron Pleated Cellulose Replacement Filter by Tier1
Primary Filter Media Pleated Cellulose
  • The Tier1 S20-20 water filter is comparable with the following part numbers:

  • S1-20BB | PENTEK-ECP20-20BB | ECP20-20BB | 4PCC7 | 255495-43 | 25549543 | TIER1-S20-20 | S20-20 | SPC-45-2020 | FMBB-10-5 | GC20-20 | PL20B20 | W20CLHD20 | 155305-51


  • Water Filter Housings for the Tier1 S20-20 water filters:

  • 255495 Pentek ECP2020-BB filter fits in housings for 20 inch Big Blue water filters.
  • Culligan / USFilter / Ametek / Pentek 20" Big Blue Whole House Water Filter System

Instructions