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

Price $176.99 List Price Price $252.99 Save 30%
Availability: BackOrder - Free Shipping
Installs directly onto the cold water supply
  • Includes a sleek, NSF certified designer faucet in chrome color
  • Features Tier1's innovative twist and lock filter change design
  • Provides great tasting filtered water
  • Installs simply into cold water supply line, does not require very much maintenance
› See more product details
The Tier1 4-Stage Ultra-Filtration Hollow Fiber Quick-Change Drinking Water Filter System with 4 Reusable Glass Water Bottles is a four stage under-sink filtration system with four reusable glass water bottles. The system stages are sequenced to filter particles down by size so that they all together increase the longevity of the filtration system and each of the other replacement filters. The sequence is as follows, (stage 1) a 5 micron sediment pre-filter, (stage 2) carbon block pre-filter, (stage 3) a 1 micron sediment filter, and (stage 4) a hollow fiber ultrafiltration membrane post-filter. Together these filters are capable of reducing sediment, dirt, chlorine taste and odor, and a significant amount of total dissolved solids (TDS). The system features our innovative twist and lock filter change design to make filter changes easier than ever. The sediment filters should be replaced every 3 months, the carbon filter every 6 months, and the ultrafiltration membrane every 12 months. Featuring a slim, compact design this filter installs easily under the sink and doesn't take up much space. This space saving design allows you to keep your usual items underneath the sink with ease. This system also comes with a stylish chrome faucet which goes well with most countertop and backsplash designs, to dispense the filtered water. The included glass bottles are BPA free and can be used to chill or transport your newly filtered water. The glass water bottles hold half a liter or roughly 17oz. they are easy to clean and make an excellent alternative to expensive single use water bottles. Enjoy the clean crisp taste of filtered water with the Tier1 4-Stage Ultra-Filtration Hollow Fiber Drinking Water Filter System today!

4 Stages of Ultra Filtration

Stage 1: During stage one, water enters the sediment filter. The sediment filter reduces physical particles, such as sand, rust, silt, soil, and more!
Stage 2: Next the water goes through the carbon block filter. The carbon block filter reduces the taste and odor of chlorine.
Stage 3: After the water has been reduced of sediment and chlorine taste and odor it goes through another sediment filter to ensure most physical particles are remove.
Stage 4: During the final stage, the water goes through the membrane. The membrane reduces total dissolved solids (TDS). This stage is to ensure that your water is safe and ready for use at the quality you desire!

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 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