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EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

Price $42.99 List Price Price $61.99 Save 30%
Availability: In Stock - Free Shipping
Fits most standard 20 x 4.5-inch housings
Choose a quantity
  • 1Filter$42.99 
  • 2Filters Price $41.70 each
  • 3Filters Price $40.45 each
  • Ships fast!
  • Filters microns down to 10 microns
  • Reduces chlorine taste and odor, dirt, sand and sediment 
› See more product details
  • Ships fast!
  • Filters microns down to 10 microns
  • Reduces chlorine taste and odor, dirt, sand and sediment 
The EPM-20BB Pentek Comparable Whole House Water Filter by Tier1 is ideal for 20 x 4.5 inch municipal or well water applications that require reductions of dirt, sand, sediment, chlorine taste and odor. Powder Activated Carbon Block filter media provides contaminant reduction with a nominal micron rating of 10. The highest carbon block dirt holding capacity at maximum cartridge life; Order today!

Experience the Tier1 Difference

Tier1 manufactures high-quality filtration and household products. We take creating and maintaining a healthy home seriously. Products must undergo rigorous testing and meet demanding quality expectations in order to earn the Tier1 badge. Every purchase is backed by the Tier1® Guarantee:

  • Guaranteed Fit
  • Guaranteed Quality
  • Guaranteed Price
Package Qty1
Used In BrandsPentek, Tier1
Manufacturer's IdEPM4-20BB
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
MediaPowder Activated Carbon
Primary Filter MediaActivated Carbon Block
Materials of ConstructionGaskets made from Buna-N and Polyethylene outer netting
Filter Life (gallons)30,000
Filter Life (liters)113,562.30
Filter Life (months)6 months
Micron Rating (Nominal)10
Operating Temperature (°F)40 - 180
Operating Temperature (°C)4.4 - 82.2
Flow Rate (gpm)4
Flow Rate (lpm)15.142
Country of ManufactureChina
Warranty GuaranteeUnconditional Product Guarantee for Life of the Product
IncludesOne 20 X 4-1/2 Inch Carbon Block Replacement Filter by Tier1
Primary Filter MediaActivated Carbon Block

Reduced Contaminants

The TIER1-EPM4-20BB reduces the following contaminants:

  • Chlorine Taste & Odor
  • Dirt
  • Sand
  • Sediment

The TIER1-EPM4-20BB is comparable with the following part numbers



  1. Turn off water supply. Press red pressure-relief button (if present).
  2. Unscrew housing. Remove large o-ring, wipe clean and set aside.
  3. Discard used filter cartridge. Wash housing with dish soap and warm water using a nonabrasive sponge or cloth. Rinse thoroughly. Fill 1/3 with water. Add about 1 tablespoon of bleach and scrub to disinfect. Rinse thoroughly.
  4. Lubricate o-ring with clean silicone grease. Change o-ring if any damage cuts or degradation are present. Insert o-ring in groove.
  5. Insert new filter cartridge.
  6. Screw housing onto the cap and hand-tighten. Do not over tighten. Make sure cap standpipe slips into cartridge.
  7. Turn on water supply. Press pressure-relief button (if present). Check for leaks before leaving installation.