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

List Price: $199.00
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$50.00 (25%)
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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...

Environmental Impact

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


  • 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

Under Sink Cutaway Diagram
View a cutaway diagram of typical under sink filter to see how it filters your water.
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