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Tier1 3US-AF01 Comparable Under Sink Water Filter Replacement Cartridge

Price: $15.99
Availability: In Stock
Fits in place of the 3M Filtrete 3US-AF01 Undersink Water Filter Replacement Cartridge
Choose a quantity
  • 1 Filter $15.99  
  • 2 Filters Price: $15.49 each
  • 3 Filters Price: $14.99 each
  • Ships fast!
  • Installs quickly and easily
  • Provides great tasting water for up to six months
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The Tier1 3US-AF01 Comparable Under Sink Water Filter Replacement Cartridge is ideal for ensuring you have great tasting drinking water, whether your water comes from your city or from your well. By reducing many common water contaminants, the Tier1 US-WF0120 filter leaves behind fresh and clean tasting water and ice. Each US-WF0120 lasts for up to six months, ensuring you have great fresh, clean tasting water quickly and easily. Order the Tier1 3US-AF01 Comparable Under Sink Water Filter Replacement Cartridge today!

Experience the Tier1 Difference

Tier1 manufactures high-quality filtration and household products. We take creating and maintaining a healthy home seriously. Products must undergo rigorous testing and meet demanding quality expectations in order to earn the Tier1 badge. Every purchase is backed by the Tier1® Guarantee:

  • Guaranteed Fit
  • Guaranteed Quality
  • Guaranteed Price
Package Qty 1
Used In Brands 3M, Filtrete
Manufacturer's Id US-WF0120
UPC 638845885591
Actual Size (in) 10-7/16 inches (length) x 3-3/16 inches (outside diameter)
Actual Size (cm) 26.5113 x 8.09625
Primary Filter Media Activated Carbon Block
Filter Life (gallons) 2,000
Filter Life (liters) 7,570
Filter Life (months) 6 months
Micron Rating (Nominal) 0.5
Operating Pressure (psi) 25 - 125
Operating Temperature (°F) 40 - 100
Operating Temperature (°C) 4.4 - 37.8
Flow Rate (gpm) 2
Flow Rate (lpm) 7.571
Color White
Certifications Independently Tested against NSF/ANSI Standard 42
Warranty Guarantee Unconditional Product Guarantee for Life of the Product

Reduced Contaminants

The TIER1-US-WF0120 reduces the following contaminants:

  • Chlorine Taste & Odor
  • Rust and Corrosion
  • Sand
  • Sediment
  • Silt
  • Turbidity

The TIER1-US-WF0120 is comparable with the following part numbers


The TIER1-US-WF0120 fits the following model numbers



  1. Turn cartridge to the left (counterclockwise) until the cartridge comes to a complete stop, water will automatically turn off.
  2. Gently pull the cartridge down to remove.
  3. Push new filter cartridge into filter head and turn cartridge a quarter turn to the right until it stops.
  4. Turn on cold water at faucet for five minutes to flush new filter. Water may run cloudy initially but will clear.
  5. Write the date of installation on the filter and mark your calendar to replace with another filter after 6 months.

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