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 Granular Activated Carbon Replacement Filter by Tier1 (10 micron)

    Fits most stand housings built for 20-inch x 4.5 inch filter cartridges
    • Supports a flow rate up to 4 gallons per minute (gpm)

    • Lasts for up to 6 months, depending on use and water quality

    • Provides great tasting, more refreshing water throughout your home

    • KDF media effectively reduces heavy metals and bacteria in your water

    format_list_bulleted Features & Specs
    Package Qty: 1
    Manufacturer: Tier1
    Manufacturer's Id: KDF85-20BB
    UPC: 799932614149
    Actual Size (in): 20 inches (Length) x 4-1/2 inches (Outside Diameter)
    Media: KDF 85 with Granular Activated Carbon
    Primary Filter Media: GAC with KDF 85
    Warranty Guarantee: Unconditional Product Guarantee for Life of the Product
    Brand: Tier1
    Advertised Size: 20 x 4-1/2
    Length (in): 20 in
    Outside Diameter (in): 4.5 in
    Width (in): 4.5 in
    Media Type: Carbon Filter
    Micron Rating Nominal: 10
    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
  • Algae
  • Chlorine
  • Hard Scale
  • Heavy Metals
  • filter_alt Filter Life
    Filter Life (gallons): 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 KDF85-20BB Filter Advantages

    The Aries F-20-2215 Comparable Whole House Water Filter by Tier1 contains KDF-85. This filter reduces chlorine taste and odor, water-soluble heavy metals, and controls scale, bacteria, and algae in your water. KDF is a patented medium that consists of high purity copper-zinc granules that use redox (exchange of electrons) to effectively reduce chlorine and heavy metals as well as controlling microorganisms in potable water. The Tier1 KDF85-20BB-WF Water Filter is 20-inch L x 4.5-inch W. The filter can be used in all number 20 Big Blue or number 20 Big Boy housings.

    Scale Reduction Importance

    Scale build up is caused by minerals in your water bonding to one another and creating clusters which can negatively affect water flow, water using appliances, and the effectiveness of soaps and detergents. By exchanging electrons with some of these minerals your cartridge will help reduce this build up and help improve your water quality. If you are in need of heavy scale reduction and have high levels calcium and magnesium in your water you may want to check out a whole home water softening system such as the Tier1 48,000 Grain Water Softener

    Standardized Filter Sizing

    The 20 X 4.5 inch KDF and granular activated carbon 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 ECP5-20 goes to work immediately providing cleaner, fresher water for up to six months. Enjoy cleaner better water with your whole house replacement filter today.