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H2O International US3-I, 5-Stage Under Sink Water Filter

List Price: $199.00
FREE Shipping with orders over $99 (details)
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$50.00 (25%)
  In Stock
  Inline Under Sink System
  Filtered Water From Your Existing Faucet
  Granular Carbon & KDF 55 Media
  Removes Chlorine, Taste, Odor & Lead
  Maintenance Free for 3 Years
Filtered Water Benefits the Whole Family

Quick-Connect Guide:

Quick-Connect FittingsTubing connection has never been easier than with Quick-Connect fittings. View our simplified Quick-Connect diagrams to see how...

Environmentally Friendly

Water Bottle Landfill

Use our Bottled Water Cost Calculator to find out how much of an impact you have on the environment.

Learn why filtration is better for the environment than bottled water.

Bottled Water vs Tap Water

Filtered Water Photo
Your Family will Benefit from Healthy, Clean Water
Great Tasting Water, Coffee & Tea
Healthy Water for Cooking
Endless Supply of Water
Never Runs Out
Pure Water for Ice
Improve Pet Health with Filtered Water
Save Money over Bottled Water


  • Standard GAC/KDF Sealed Unit uses 80% Granular Activated Carbon by volume and 20% Patented KDF Media for removal of chlorine and heavy metals.
  • US3 removes Chlorine, Bad Taste, Odor, Color, and Sediment.
  • Bacteriostatic Media Prevents Bacteria Growth within the unit
  • Inline Model Delivers Filtered Water through your existing faucet on the cold water side.
  • System includes everything needed for installation including 3/8" Tubing.
  • Click here to view a model that uses its own faucet to dispense filtered water.
  • The US3-I will provide your family with a seemingly endless supply of water that is on par with bottled spring water.
  • 3 Year, Maintenance Free Warranty
Removes Chlorine   Removes Leads
Media in This System:
GAC Media
Granular Activated Carbon Removes Chlorine, Bad, Taste and Odor and Chemical Contaminants.
KDF Media
KDF Media Removes Lead and Inhibits Bacteria Growth from within the unit.
Under Sink Cutaway Diagram
View a cutaway diagram of typical under sink filter to see how it filters your water.
Filtered Water Benefits the Whole Family
H2O-US3-I Specifications
Max Capacity: 25,000 gallons Recommended Flow: 1 - 1.5 GPM
Dimensions: 16½" (H) × 4" (D) Unit Shipping Weight: 8 lb