X

Save with Auto-Ship

Get the product you need, exactly when you need it, delivered right to your door. No more searching for the right part number, we've got you covered. Plus, you'll save $$ on every order and shipping is on us. Learn more

Save Money

Free Shipping*

Choose Frequency

*Free Shipping available in the contiguous US

Search
My Cart
My Cart Checkout
Search
Free Shipping on Orders Over $39* | Free Returns | No Worries Guarantee | Contact Us | 1-800-277-3458

D-20A Culligan Level 1 Undersink Filter Replacement Cartridge

SKU
CULLIGAN-D-20
main product photo
Price $20.99 List Price Price $29.99 Save 30%
Availability: In Stock
Fits Culligan US-600, US-600A, RO-2127, RO-3000, RO-3500, and any brand of water filtration system that uses standard 9 3/4 x 2 1/2 filter cartridges
  • Lasts four times longer than the Culligan D-10
  • Recommended for city and well water supplies
  • Granular activated carbon filter media
› See more product details
Shipping
Return Policy
  • Lasts four times longer than the Culligan D-10
  • Recommended for city and well water supplies
  • Granular activated carbon filter media
Undersink replacement water filter for water filtration systems that use 9 3/4 inch x 2 1/2 inch cartridges. Fits Culligan US-600, US-600A, and more. The D-20A is the newer model of the Culligan D-20, the main difference being an update to inlet and outlet channels for better flow. This filter may not fit older housing model US-550.
Package Qty1
Used In BrandsCulligan
Manufacturer's IdD-20A
UPC033663005105
Advertised Size (in)10 x 2-1/2
Actual Size (in)9 3/4 inches (length) x 2 1/2 inches (outside diameter)
Actual Size (cm)24.77 x 6.35
Outside Diameter (inches)2.5
MediaGranular Activated Carbon
Primary Filter MediaGranular Activated Carbon
Filter Life (gallons)1,000
Filter Life (liters)3,785.41
Filter Life (months)12 months
Micron Rating (Nominal)5
Country of ManufactureTaiwan, Province of China
CertificationsNSF/ANSI Standard 42

Reduced Contaminants

The CULLIGAN-D-20 reduces the following contaminants:

  • Bad Taste and Odor
  • Chlorine Taste & Odor

The CULLIGAN-D-20 is comparable with the following part numbers

34375 38509 49640 432636
3436517 4234375 826-746 Ace 49640
American Plumber WCC Ametek CTR-210 Ametek Kleen-Plus C-10 Ametek US-560
D-20 D-20A Flotec T02 GE FXUTC
GE GN1S15 GE GN1S15CBL GE GN1S20C GE GX1S01C
GE GX1S04C GE GX1S15 GE GX1S15C OmniFilter CBF1
OmniFilter CBF20 OmniFilter CBF3 OmniFilter Deluxe OmniFilter GAC1
OmniFilter GAC1-SS OmniFilter OB3 OmniFilter OT2 OmniFilter OT32
OmniFilter SFM2 OmniFilter SFM3 OmniFilter Super OmniFilter Total 2
OmniFilter Total Plus OmniFilter U400 OmniFilter U450 OmniFilter U500
OmniFilter U600 OmniFilter U700 OmniFilter UC2 RO-3000
RO-3500 Sears 34375 SY-2000 SY-5167
TO2 True Value 826-746 US-550 US-560
US-600 1020696