Save with Auto-Ship

Get the product you need, exactly when you need it, delivered right to your door. No more searching for the right part number, we've got you covered. Plus, you'll save $$ on every order and shipping is on us. Learn more

Save Money

Free Shipping*

Choose Frequency

*Free Shipping available in the contiguous US

Tier1 4-Stage Under Sink Ultra-Filtration Hollow Fiber Quick-Change Drinking Water Filter System with 4 Reusable Glass Water Bottles

Price $154.99 List Price Price $220.99 Save 29%
Availability: In Stock - Free Shipping
Installs directly onto the cold water supply
  • Installs quickly and easily
  • Includes four premium Tier1 glass water bottles
  • Features Tier1's innovative twist and lock filter change design
  • Includes a sleek, NSF certified designer faucet in chrome color
See more product details
The Tier1 4-Stage Ultra Filtration Hollow Fiber Drinking Water Filter System features our innovative twist and lock filter change design, meaning no messy sump removal, ensuring maintenance is quick and easy. This convenient bundle pack includes 4 of our high quality glass water bottles. Our glass water bottle feature many benefits, they are reusable and BPA free, making them an ideal way to store your filtered water.

STAGE 1: 5 micron sediment pre-filter
STAGE 2: Carbon block pre-filter
STAGE 3: 1 micron sediment pre-filter
STAGE 4: Hollow fiber ultrafiltration membrane post-filter

Tier1 drinking water filter systems are built for performance and priced to ensure clean, great tasting water is available to everyone. Distinctive style, ease of installation, ease of maintenance, and ease of use were in mind throughout the design and manufacturing processes. The system includes a sleek designer faucet in chrome color. Sediment filter changes are recommended every 3 months, the carbon filter change is recommend every 6 months, and the the hollow fiber ultrafiltration membrane change is recommended every 12 months, depending on use and water quality. Order the Tier1 4-Stage Ultra Filtration Hollow Fiber Drinking Water Filter System today.
Package Qty4
Manufacturer's IdUS-UF-100-GWB
Actual Size (in)13 inches (length) x 12 inches (width) x 3 inches (depth)
Actual Size (cm)33.02 x 30.48 x 7.62
Filter Life (gallons)1,500
Operating Pressure (psi)5 - 120
Operating Temperature (°F)40 - 100
Operating Temperature (°C)5 - 37.8
Flow Rate (gpm)0.5
Flow Rate (lpm)1.89
Warranty GuaranteeUnconditional Product Guarantee for Life of the Product

Reduced Contaminants

The TIER1_US_UF_100_GWB_4_PACK reduces the following contaminants:

  • 1,2-Dichlorobenzene / O-Dichlorobenzene (ODCB)
  • Acanthamoeba
  • Alachlor
  • Benzene
  • Carbon Tetrachloride
  • Chlorine Taste & Odor
  • Chloropicrin
  • Cryptosporidium
  • Dibromochloropropane (DBCP)
  • Dinoseb
  • E. Coli
  • Ethylbenzene
  • Ethylene Dibromide (EDP) / 1,2-Dibromoethane
  • Giardia
  • Heptachlor Epoxide
  • Hexachlorobutadiene
  • Lindane
  • P-Dichlorobenzene
  • Salmonella
  • Sand
  • Sediment
  • Shigella
  • Staphylococcus Aureus
  • Styrene
  • Tetrachloroethylene / Perchloroethylene (PERC)
  • Toluene
  • Total Trihalomethanes (TTHM)
  • Trichloroethylene
  • Vibrio Cholerae

The TIER1_US_UF_100_GWB_4_PACK fits the following model numbers

US-UF-100-SDRF-5 US-UF-100-SDRF-1 US-UF-100-CBRF US-UF-100-RM

User Guide


  1. Install system near water source
  2. Turn off cold water supply
  3. Disconnect sink faucet cold water line from feed water source
  4. Install slip joint adapter (included) on to the cold water line
  5. Reconnect sink faucet to water line by connecting to the slip joint adapter (included)
  6. Connect ball valve adapter (included) to the feed water connection by connecting to the slip joint adapter (included)
  7. Attach flexible water supply hose (included) from ball valve adapter (included to filtration unit)
  8. Drill hole in sink for drinking water faucet (smooth any rough edges with file)
  9. Insert drinking water faucet into hole, secure with fittings (included)
  10. Connect flexible water supply hose (included) from filtration system to drinking water faucet