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

Culligan D-30A Level 2 Undersink Filter Replacement Cartridge

Price $29.99 List Price Price $42.99 Save 30%
Availability: In Stock
Fits Culligan US-600, US-600A, SY-2000, SY-2100, and most brand of water filtration systems that uses standard 9 3/4 x 2 1/2 filter cartridges
  • Second best Culligan drinking water replacement cartridge
  • Recommended for city and well water supplies
› See more product details
  • Second best Culligan drinking water replacement cartridge
  • Recommended for city and well water supplies
Undersink replacement water filter for water filtration systems that use 9 3/4 inch x 2 1/2 inch cartridges. This filter uses carbon block media to reduce a variety of unwanted contaminants including sediment, turbidity, cysts, particulates, and unpleasant chlorine taste and odor. This filter features a nominal micron rating of .5 meaning it can reduce particulates down to .5 microns in size and larger. With a 12 month life span this undersink filter delivers a great value for a high quality filtration. Order your Culligan D-30A level 2 undersink filter replacement cartridge today!
Package Qty1
Used In BrandsCulligan
Manufacturer's IdD-30A
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
MediaCarbon Block
Primary Filter MediaCarbon Block
Filter Life (gallons)1,000
Filter Life (liters)3,785.41
Filter Life (months)12 months
Micron Rating (Nominal)0.5
Flow Rate (gpm)0.60
Flow Rate (lpm)2.27
Country of ManufactureUnited States

Reduced Contaminants

The CULLIGAN-D-30 reduces the following contaminants:

  • Asbestos
  • Bad Taste and Odor
  • Chlorine Taste & Odor
  • Cysts
  • Particulates (Class I)
  • Sediment
  • Turbidity

The CULLIGAN-D-30 is comparable with the following part numbers

47564 480673 4158721 529-324
Ace 4158721 American Plumber W.5CB American Plumber W-30 American Plumber W-30 / 2-5CB
Ametek CTR-210 Ametek Kleen-Plus CBC-10 Ametek US-560 CBC-10
D-30 D-30A D-40 Do It Best 480673
GE GX1S15C Master Plumber 529-324 OmniFilter BC1 OmniFilter CB1
OmniFilter CBF1 OmniFilter CBF20 OmniFilter CBF3 OmniFilter Deluxe
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 Sears 3480 SY-2000
SY-5167 Teledyne WaterPik IR-70 True Value 529-324 US-600
US-600A US-640 Whirlpool WHCF-DB1 Whirlpool WHCF-DDF1


  1. The Culligan D-30A under sink water filter life is up to 12 months or 1000 gallons (depending on the quality of your water)
  2. The Culligan D-30A should be installed with the end of the filter with the hole facing up
  3. If no water is passing through the system, the filter is likely installed upside down
  4. If the flow restriction in the Culligan D-30A is too great, you can increase the flow rate by drilling a larger hole where the existing hole is, with a 1/8-inch drill bit