Whole House Systems
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  • Replacement Filters
  • Culligan


    Culligan D-250A Under Sink Water Filter Set

    Fits most stand housings built for 10-inch x 2.5 inch filter cartridges
    • Fast shipping!

    • Reduces contaminants down to 0.5 microns in size

    • Drop-in design makes filter changes quick and easy

    • Provides great tasting water directly from your faucet

    format_list_bulleted Features & Specs
    Package Qty: 1
    Manufacturer: Culligan
    Manufacturer's Id: D-250A
    UPC: 033663005693
    Actual Size (in): 9 3/4 inches (length) x 2 1/2 inches (outside diameter)
    Media: Granular Carbon and Carbon Block
    Primary Filter Media: Granular Activated Carbon
    Brand: Culligan
    Advertised Size: 10 x 2-1/2
    Length (in): 9.75 in
    Outside Diameter (in): 2.5 in
    Width (in): 2.5 in
    Media Type: Carbon Filter
    Pre Filter Media: Activated Carbon Block
    UPC's For Search: 33663005693
    Micron Rating Nominal: 0⋅5
    description Instructions
    1. NOTE: Install the Culligan D-250A water filters with the black gasket end pointing up.
    2. Turn off water supply. Press red pressure-relief button (if present)
    3. Unscrew housing. Remove large o-ring, wipe clean and set aside
    4. Discard used filter cartridge. 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
    workspace_premium Certifications
  • NSF/ANSI Standard 42
  • warning_amber Contaminants Reduced
  • Asbestos
  • Bad Taste And Odor
  • Chlorine
  • Cysts
  • Lead
  • Mercury
  • Pesticides
  • Sand
  • Sediment
  • Turbidity
  • Vocs
  • filter_alt Filter Life
    Filter Life (gallons): 6 months

    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

    Culligan D-250A Filter Advantages

    The Culligan D-250A Water Filter Set filters the water twice producing healthier and better-tasting drinking and cooking water. The Culligan D-250A filter set consists of one granular activated carbon cartridge and one carbon block cartridge. The Culligan D-250A water filter has been tested and certified by NSF International to NSF/ANSI Standard 42 in models SY-2300, SY-2300S, and SY-2650. The Culligan D-250A water filter cartridges reduce sediment, bad taste, and odors and is recommended for use with city and well water supplies. The Culligan D-250A filter dimensions are 9.75-inch x 2.4-inch x 2.4-inch. The Culligan D-250A is a 0.5 micron extra fine water filtration set.

    Universal Filter Sizing

    The Culligan D-250A under sink water filter is perfectly sized for filter housings requiring 10 x 2.5 inch filters. Due to this standardized sizing these filters are compatible with many filter housing brands and are easy to exchange with existing filters and filter sets. For more specific compatible information please check out the comparables tab in the options above.

    CULLIGAN-D-250A   is comparable with the following part number(s)

    • 039861-WI-001
    • 155584-44
    • D250
    • D250A
    • D-250A
    • P250
    • P-250
    • P250A
    • P-250A
    • SY-2300
    • SY-2300S
    • SY-2650
    • W250
    • W-250
    • 1019067