🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★œ
Bigamart
Price
$410.99
Add to cart
Home/DIY & Tools/Kitchen & Bath Fixtures/Water Filtration & Softeners/Under-Sink Filters
AQUALTRA USF-4RF-100, SGS Certified, Alkaline Reverse Osmosis System 100 GPD 3: 1 Pure to Drain Under Sink Water Filter System with Dedicated Faucet — image 1
Under-Sink FiltersAQUALTRA✓ In stock

AQUALTRA USF-4RF-100, SGS Certified, Alkaline Reverse Osmosis System 100 GPD 3: 1 Pure to Drain Under Sink Water Filter System with Dedicated Faucet

★★★★★
$410.99
Worldwide shipping
Fast tracked delivery
30-day returns
Hassle-free returns
Secure checkout
Safe & protected
Great service
Thousands of happy customers
Add to cart
About this item
  • 【Mineral Boost】This ro water filter system enriches your tap water with beneficial minerals such as CaÂČâș, MgÂČâș, Naâș, and Kâș during the filtration process, bringing a healthier and more delicious drinking water experience.
  • 【Premium 0.0001 ÎŒm Filtration Accuracy】This ro system is composed of 4 filters for multi-stage deep filtration including alkaline filtration, reducing TDS (96.03%), PFOA (>99.27%), PFOS (>99.52%), Chlorine (>99.48%), Lead (>99.89%), Pentavalent Arsenic (>99.94%), Nitrate (>99.91%), Cadmium (>99.51%), Chromium (>98.95%), Copper (>99.85%), Fluoride (>99.92%), Mercury (>98.24%), Barium (>99.95%), Selenium (>99.09%), Coliform(>99.99%) and other contaminants, tested according to NSF/ANSI 42&58 standards by a third-party lab SGS.
  • 【Excellent Sealing & 36 Months Lifespan of RO Filter】The under sink ro system adopts strong materials with fully enclosed integrated design to prevent leakage and secondary pollution. NOTE: PP filter can last for 6-12 months, CFC filter for 24 months, RO filter for 36 months and ACB-ALKA filter for 24 months.
  • 【100 GPD FLow & 3: 1 Pure to Drain】With 100GPD flow and 3:1 water-saving ratio, the USF-4RF-100 under sink ro water filter system provides fast, on-demand purified water while reducing waste water. 3.2-gallon water storage tank, secures a reliable and speedy water supply.
  • 【Not for Well Water & Hot Water】It is specifically designed for municipal tap water and can only be used with COLD water sources. This r o water filter system is also not suitable for well water. If you want to use it for well water filtration, the well water source must be pre-filtered.
  • 【Easy Installation】Featuring a push-to-connect and quick-twist design, the head interface is semi-movablemaking it easy to replace the filter and filters replaced in just 3 seconds. If you have any installation problems, contact our customer service or watch the installation video on this product page. Search “B0H1CWRZCZ” for replacement filters.
Product details
Brand
AQUALTRA
Manufacturer
AQUALTRA
Material
Plastic, Activated Carbon, Reverse Osmosis Membrane
Model number
USF-4RF-100
Part number
ROS001-WE-AA-UK

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
See all reviews →
S
Sigalit
đŸ‡źđŸ‡± · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇩đŸ‡ș · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1–2 of 10 reviews

You might also like

Similar items

View all →