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US-ST04 Undersink Smart Tap System with Drinking Water Faucet by Tier1

Save 21% (MSRP: $110.99)

Quick Overview

Installs directly onto the cold water supply

US-ST04 Undersink Smart Tap System with Drinking Water Faucet by Tier1


The Tier1 US-ST04 undersink system includes a contemporary ceramic drinking water faucet in chrome. The set is the perfect addition to your kitchen sink, filtering over 50 contaminants potentially in your water. This easy-to-install system will give you clean, fresh, great-tasting water in no time at all! Simply mount the bracket and filter under your kitchen sink cabinet, hook it up to your cold water line with the water supply adapter (included), and away you go! The system has been tested against NSF standards 42, 53, and 401 for reduction of substances such as bad Chlorine taste and odor, Turbidity, Mercury, Lead, some pharmaceuticals, and more! There's no need to waste money and space on countertop systems and bottled water, Tier1 offers all the filtration you need with the Tier1 US-ST04 Undersink System. Order today!

  • Easy installation!
  • Over 650 gallon filter capacity
  • Includes a contemporary chrome drinking water faucet
  • Reduces Chlorine Taste and Odor, Lead, Mercury, and more!


Package Qty 2
Used In Brands Tier1
Manufacturer's Id US-ST04
UPC 641945752496
Actual Size (in) 19.25 inches (length) x 4.125 inches (width) x 4.5 inches (depth)
Actual Size (cm) 50 centimeters (length) x 10.5 centimeters (width) x 11.5 centimeters (depth)
Primary Filter Media Carbon Block
Filter Life (gallons) 651
Filter Life (liters) 2464
Operating Pressure (psi) 40 - 120
Operating Temperature (°F) 33 - 100
Operating Temperature (°C) 4.4 - 37.8
Flow Rate (gpm) 1.25
Flow Rate (lpm) 4.73
Color / Finish Gray
Chlorine Tolerance 95.50%
Warranty Guarantee Unconditional Guarantee for Life of the Product
Primary Filter Media Carbon Block

The TIER1_US_ST04_FAUCET is comparable with the following part numbers