20 X 2.5 Carbon Block Replacement Filter by Tier1 (0.5 micron)

Price $25.99
Availability: In stock
Choose a quantity
  • 1 Filter $25.99  
  • 3 Filters Price $24.19 each
  • 6 Filters Price $23.49 each
  • Ships fast
  • Installs quickly and easily
  • Built for performance, priced for value
  • Manufactured for housings that require a 20-inch x 2.5-inch filter cartridge
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The Pentek CBC-20 Comparable Whole House Carbon Block Water Filter by Tier1 is built for performance. Immediately following installation, this filter begins reducing impurities down to 0.5 micron. Manufactured for use in filter housings that require a 20-inch x 2.5-inch filter cartridges, this filter installs quickly and easily. Tier1 water filters are priced value, ensuring great water at a great price. Order the Pentek CBC-20 Comparable Whole House Carbon Block Water Filter by Tier1 today!
Package Qty 1
Used In Brands 3M, Aqua-Pure, Culligan, Pentek, Tier1
Manufacturer's Id CBC-20
UPC 635510442660
Advertised Size (in) 20 x 2-1/2
Actual Size (in) 20 inches (length) x 2-7/8 inches (outside diameter)
Actual Size (cm) 50.8 x 7.3025
Media Bonded Powdered Activated Carbon
Primary Filter Media Activated Carbon Block
Filter Life (gallons) 45,000
Filter Life (liters) 17,0325
Filter Life (months) 6 months
Micron Rating (Nominal) 0⋅05
Operating Temperature (°F) 40 - 180
Operating Temperature (°C) 4.4 - 82.2
Flow Rate (gpm) 2
Flow Rate (lpm) 7.57
Warranty Guarantee Unconditional Product Guarantee for Life of the Product

The TIER1-CBC-20 is comparable with the following part numbers

155309-43 CB-20
CBC-20 CBC-20-WF


  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
  4. Wash housing with dish soap and warm water using a nonabrasive sponge or cloth. Rinse thoroughly
  5. Fill 1/3 with water. Add about 1 tablespoon of bleach and scrub to disinfect. Rinse thoroughly
  6. Lubricate o-ring with clean silicone grease. Change o-ring if any damage cuts or degradation are present. Insert o-ring in groove
  7. NOTE: This step is important to ensure a proper housing seal. Make certain the o-ring is seated level in the groove
  8. Insert new filter cartridge
  9. Screw housing onto the cap and hand-tighten. Do not over tighten. Make sure cap standpipe slips into cartridge
  10. Turn on water supply. Press pressure-relief button (if present). Check for leaks before leaving installation

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