H2O International US4, 5-Stage Under Sink Water Filter


In Stock as of 8:00am EST

  • Granular Carbon & KDF 55 Media
  • Made in the USA
  • Maintenance Free for 3 Years
  • Removes Chlorine, Taste, Odor & Lead



  • Standard Sized KDF/GAC System
  • Drinking Water Faucet provides water for drinking, cooking, ice, and beverages.
  • Removes Chlorine, Bad Taste, Odor and Lead
  • Reduces Chemical Contaminants
  • Removes Dirt, Rust & Sediment
  • Bacteriostatic KDF Media Prevents Bacteria Growth within the Unit
  • Includes Tubing, Fittings and Instructions
  • Warranted for 3 Years of Maintenance Free Performance
  • Made in the U.S.A.
Removes ChlorineRemoves Lead
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.

Additional information

Weight 13 lbs
Country of Origin

H2O-US4 Specifications
Max Capacity: 35,000 gallons Recommended Flow: 1 - 2 GPM
Dimensions: 16½" (H) × 5" (D) Unit Shipping Weight: 11 lbs.

H2O-US4 Brochure


H2O-US4 Installation Manual


Parts / Accessories

  • Refrigerator / Icemaker Connection Kit w/ 3/8″ Tee

    Part#: ICEKIT38