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Culligan

Culligan US-DC3 Under Sink Water Filter System, Direct Connect, Premium Lead Filtration, Removes 99% Lead, Chlorine, Taste & Odor, 4,750-Gal, 12-Month Cartridge, 1.5 GPM

  • Based on 142 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Sep 11
Order within 21 hours and 27 minutes
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Features

  • High Lead Reduction & Water Purity: Certified to reduce up to 99% lead, chlorine, bad taste & odor, mercury, microbial cysts, and VOCs for safer drinking water.
  • Long-Lasting Cartridge Life: Delivers up to 4,750 gallons or 12 months of filtration with quick twist-lock replacement (use part US-DC3-R; compatible with US-DC1-R and US-DC2-R).
  • Strong Flow Rate & Convenience: Maintains 1.5 GPM flow through the cold water line, installs under sink with included 3/8 plastic tubing and mounting hardware.
  • Easy Installation & Low Maintenance: Under sink system includes integrated bracket, plastic tubing, supply adapter, and screws. Filter swap is tool-free and fast.
  • Compact & Certified Performance: Compact white direct connect system, tested to NSF and IAMPO standards (ANSI/NSF 42, 53, etc.), handles up to 500 ppm TDS (Total Dissolved Solids).

Description

Direct connect under-sink system certified to reduce lead up to 99% without sacrificing cold water flow rate at the sink. Flow rate of 1. 5 GPM. Quick "twist-lock" cartridge replacement, compatible with Direct Connect line of products (US-DC1-R and US-DC2-R) Extended capacity cartridge life; 4, 750 gallons or 12-month

Brand: Culligan


Special Feature: Chlorine Reduction


Product Dimensions: 4"L x 6.1"W x 15"H


Material: Plastic


Capacity: 4750 gallons


Included Components: Filter Cartridge


Package Information: Faucet


Installation Type: Under Sink


Purification Method: Carbon Block


Power Source: Power_source_type


Other Special Features of the Product: Chlorine Reduction


Container Type: Faucet


Installation Type: Under Sink


Purification Method: Carbon Block


Power Source: Power_source_type


Maximum Flow Rate: 1.5 Gallons Per Minute


Supported Water TDS Level Maximum (PPM): 500


Filter Life Cycle: 12 Months


Item Dimensions L x W x H: 4"L x 6.1"W x 15"H


Capacity: 4750 gallons


Item Weight: 3.4 Pounds


Material Type: Plastic


EU Spare Part Availability Duration: 1 Years


Brand Name: Culligan


Included Components: Filter Cartridge


Model Name: Under Sink Direct Connect Premium Lead Filtration System


Model Number: US-DC3


Warranty Description: 1 year limited


UPC: 033663007741


Global Trade Identification Number: 41


Manufacturer: Culligan


Unit Count: 1.0 Count


Item Type Name: Filtration System


Part Number: US-DC3


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Easy to install
Size: No Size
We were looking for a good water filter for our coffee bar. Installed this one under the island prep sink and is working very well. Easy to install.
Reviewed in the United States on June 25, 2026 by Bottoms
    • Filter my Water
Size: No Size
I luv it ! Makes the water taste great and the coffee too. Culligan knows how to do it better!
Reviewed in the United States on May 7, 2026 by Rita M.
    • Great tasting water
Size: No Size
Our water tasted horrible. Decided to buy the Culligan US-DC3 direct connect under sink filter. Amazing what a difference it makes!! No more buying bottled water! Tastes great. I had a plumber friend install it so I can't comment about the ease of installation. For him it was pretty straight forward and didn't take long at all. I highly recommend this filter. ... show more
Reviewed in the United States on November 18, 2025 by Christopher
    • Much better than a pitcher
Size: No Size
Easy to install
Reviewed in the United States on January 13, 2026 by Fay C.
    • Easy install if you're careful
Size: No Size
Pretty easy to install. When I first turned on the water I had a leak. Per the instructions, I disconnected the leaking end, re-cut it, and made sure to insert it ALL the way (it goes in farther that you might think). No leaks after that! Note that the pre-cut end has a crimp. You must re-cut the end before you cut to length. Flow rate is great - same as with no filter. Minus one start because filter is not ANSI certified. ... show more
Reviewed in the United States on May 24, 2025 by anonymous
    • BUYER BEWARE!!! Don't waste your money or time!
Size: No Size
I purchased the US-DC3 Under Sink Direct Connect Premium Lead Filtration System on Amazon on 12/27/22 for $100.99. I received it on 12/29/22 and didn’t install it until around mid-January 2023. In the middle of February 2023, the cold water started to slowly come out of the faucet. By the end of February 2023, the first part of March 2023 the cold water was just trickling out and only hot water was flowing regularly out of the faucet. I was determined the filter was faulty and was restricting water flow. On March 6, 2023, I contacted Culligan about their faulty US-DC3-R filter which lasted approximately 30 days. Culligan refused to replace the faulty filter claiming it was my water quality that was the issue, not their filter. It’s funny how Culligan knows what my water quality is without requesting a water quality report. Furthermore, I guess their water filter has a problem filtering water and may become inoperative as a result. I contacted Amazon to see if they would hold Culligan accountable for selling faulty water filter on their website. Amazon refused to intercede because it had been over 30 days since purchase. I will be searching for a new under sink water filter from a company that is reliable and offers excellent customer service. Obviously, Culligan is not that company. ... show more
Reviewed in the United States on March 9, 2023 by Brian
    • Excellent Filter
Size: No Size
No more chlorine smell! Also noticed out ZeroWater filters are lasting a little bit longer.
Reviewed in the United States on January 19, 2026 by John
    • Served its purpose while needed. Chlorine has been flushed through the system
Size: No Size
Installation was simple and easy to follow instructions. However, It does reduce and restrict flow through the cold water outlet. This affects and slows the cold water flow. Very frustrating. We added the filter to get rid of chlorine taste. When our pump was replaced. Reduced the chlorine on a cold water well until the chlorine was depleted when the new pump was replaced. Do to the water reduction inflow on the cold outlet, I will be disconnecting the filter. We do not have a chlorine issue since this is added during the replacement of our defective pump installation. It has been flushed through the system. Our well test concluded we have no issues with our water issues, safety, or quality. ... show more
Reviewed in the United States on November 30, 2025 by DG

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