Whole House Systems
  • Drinking Water Systems
  • Replacement Filters
  • verified_user Warranty Info
    Warranty Guarantee: Unconditional Product Guarantee for Life of the Product


    20 X 4.5 Carbon Block Replacement Filter by Tier1 (0.5 micron)

    Fits most stand housings built for 20-inch x 4.5 inch filter cartridges
    • Easy installation and filter exchanges within minutes

    • Provides fresh, cleaner tasting water throughout your home

    • Reduces impurities and contaminants down to .5 microns in size!

    • Produces better tasting, more refreshing drinking water in every glass

    format_list_bulleted Features & Specs
    Package Qty: 1
    Manufacturer: Tier1
    Manufacturer's Id: CBC-20BB
    UPC: 635510442684
    Actual Size (in): 19 3/4 inches (length) x 4 1/2 inches (outside diameter)
    Primary Filter Media: Activated Carbon Block
    Operating Temperature (°F): 40 - 180
    Operating Temperature (°C): 4.4 - 82.2
    Warranty Guarantee: Unconditional Product Guarantee for Life of the Product
    Brand: Tier1
    Advertised Size: 20 x 4-1/2
    Length (in): 19.75 in
    Outside Diameter (in): 4.5 in
    Width (in): 4.5 in
    Media Type: Carbon Filter
    UPC's For Search: 635510442684
    Micron Rating Nominal: 0⋅5
    Flow Rate (gpm): 2.0
    Includes: One 20 X 4.5 inch Carbon Block Replacement Filter by Tier1
    description Instructions
    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
    4. Fill 1/3 with water. Add about 1 tablespoon of bleach and scrub to disinfect. Rinse thoroughly
    5. Lubricate o-ring with clean silicone grease. Change o-ring if any damage cuts or degradation are present. Insert o-ring in groove
    6. NOTE: This step is important to ensure a proper housing seal. Make certain the o-ring is seated level in the groove
    7. Insert new filter cartridge
    8. Screw housing onto the cap and hand-tighten. Do not over tighten. Make sure cap standpipe slips into cartridge
    9. Turn on water supply. Press pressure-relief button (if present). Check for leaks before leaving installation
    warning_amber Contaminants Reduced
  • Bad Taste And Odor
  • Chlorine
  • Cysts
  • Dirt Sand Sediment
  • Sand
  • Sediment
  • Silt
  • filter_alt Filter Life
    Filter Life (gallons): 100000
    Filter Life (months): 6 months
    verified_user Warranty Info
    Warranty Guarantee: Unconditional Product Guarantee for Life of the Product

    Prop65 warning applies to products that contain carbon media. Click here for more details

    WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information go to www.p65warnings.ca.gov

    Tier1 CBC-20BB Filter Advantages

    The Pentek FLOPLUS 20BB comparable whole house carbon block water filter by Tier1 is a 0.5 micron carbon filter that goes to work filtering the water dispersed throughout your home. The Tier1 CBC-20BB-WF water filter uses a carbon block filtering media to reduce contaminants such as sediment, silt, dirt, cysts, and unpleasant chlorine taste and odors. The porous carbon media of the carbon block maximizes the surface area contaminants are exposed to and traps them there to reduce their presence in your drinking water. With polypropylene end caps and rubber washers you can expect a tight bacterial resistant seal between the filter housing and filtration media. Enjoy better tasting water in every glass with your Tier1 CBC-20BB replacement carbon block filter.

    Universal Filter Sizing

    The 20 X 4.5 carbon block 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 CBC-20BB goes to work immediately providing cleaner, fresher water for up to six months. Enjoy cleaner better water with your whole house replacement filter today.

    TIER1-CBC-20BB   is comparable with the following part number(s)

    • CBC20BB
    • CBC-20BB
    • 33004002 155312-43
    • CBC-20BB
    • CBC-20BB-WF
    • COMP-CBC-20BB
    • GBR-20