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"If a '10 star' rating was possible, this seller would receive that from me. Order arrived very quickly, was packaged properly and I enjoyed some great communication with the seller. Wouldn't hesitate at all doing business with this seller again for a filter replacement or new water filter system. It's obvious seller cares about people and strives to maintain business integrity!"
happyhart, February 22, 2012

"It was a wonderful and satisfactory experience I've had shopping at From browsing through their products to checking out, every step was a breeze!"
April M

I have dealt with them for about 8-9 years for personal showerhead and filter needs. Greatly recommended."

"I have used for 3 years now - they are what an online retailer should be: - responsive - helpful - competitively priced"!
George M.

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Under Sink Water Filter System by BestFilters - UCT100
Bestfilters Undercounter with Value Faucet.
Under Sink Water Filter System by BestFilters - UCT100
Item Id: UCT100
review 4 Review(s)
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Retail Price: $388.90
Your Savings: $129.02
Your Price:
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Faucet Options
Value Faucet (as in photo)
Brushed Nickel Premium Faucet [+$50.00]
Polished Brass Premium Faucet [+$50.00]
Polished Chrome Premium Faucet [+$50.00]
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Under Sink Water Filter System by BestFilters

undercounter water filters
BestFilters Under Sink Water Filter is a premium quality water filtration system designed to easily fit under the sink or counter and comes with its own separate faucet for convenience. NSF Certified to meet the modern demands and growing concerns over the quality of our nation`s tap water supply by substantially reducing a wide range of common contaminants. This compact powerhouse water filter measures only 6-1/2" x 10" and conveniently and easily fits out of the way under your sink.

Manufactured in the USA to meet and surpass NSF's stringent specifications 42 & 53 to remove and reduce: Chlorine, Lead, Cysts (like Giardia and Cryptosporidium), Chemical Contaminants (such as Pesticides, Fertilizers and Herbicides), Chloramine, Chlorine Byproducts (such as Chloroform), Industrial Byproducts (such as Volatile Organic Compounds (VOC's) and Petroleum Contaminants (like Benzene and MTBE), and still allowing beneficial minerals (such as Calcium, Magnesium and Potassium) to remain in the water.

And this undercounter water filter has passed and/or exceeded the extensive testing standards for NSF Standards 42 & 53 Certification and California Certification . For use in home, office,  cabin and RV.

Your absolute "Best Buy" for a highly-rated, NSF certified water filter.
  • Big Solid Block Carbon Filtration - Huge 600 GALLON Capacity
  • Each Coconut Shell Solid Carbon Block Filter Cartridge lasts about 1 year
  • Pure, Healthy Filtered water for less that .08 cents per gallon
  • Surgical Stainless Steel Housing for long-lasting, lifetime durability
  • Independently Tested & Certified by NSF International - Standards 42/53 and California Certified
  • BPA Free, no plastic housing
  • Quick & Easy Install, some tools required
  • Made in USA
  • System includes filter cartridge REPCTP100
  • LIFETIME Housing Warranty
  • 2 year Warranty on all other parts (excluding filter cartridge).
  • 60-Day Money-Back Guarantee!

FREE Stainless Steel Water Bottle with purchase!

Large Carbon Block Filtration, Yes, Size Matters
Compare the size and capacity of BestFilters replaceable filter cartridges to those found in water filter pitchers and faucet filters, and the relative costs and hassles of constantly changing filters and trying to remember the last time you changed the filter, and it's easy to see why more and more consumers are switching to the Bestfilters Under Sink Home Water Filter System. Our solid carbon block filters are manufactured from twice-refined coconut shell carbon, a renewable resource and the finest carbon source available. Most of our competition make their filter cartridges from coal carbon, but we think the water tastes much better through coconut shell carbon. A single Bestfilters filter cartridge provides up to 600 GALLONS of freshly filtered, great tasting water. That will last most families for one full year. Fewer cartridge changes mean less hassle, much greater cost savings and the convenience of fewer filter changes. And the best tasting water you can drink.

Independently Tested & Certified by NSF International
As with all BestFilters Under Sink Home Water Filter Systems, you can rest assured knowing that NSF International has verified the filtration claims and structural integrity of the system. 

Easy to Install for the DIY Homeowner
The BestFilters Under Sink Home Water Filter System fits conveniently and unobtrusively under your sink with its' own separate faucet on the sink or countertop. Installation is fairly simple for a handy homeowner. Have the convenience of freshly filtered, great tasting water at your fingertips. Get 600 gallons of convenient, highly filtered water for better tasting, coffee, tea and drinking water.

Savings, Convenience and Less Waste.
 A water filter should transform your water, not dent your wallet. With BestFilters Under Sink Water Filter, you'll enjoy premium quality water at a fraction of the cost. You'll also enjoy the convenience of a 600 gallon rated cartridge capacity (That's the equivalent of removing 6,000 plastic water bottles from the landfill!). For most households, that translates into just ONE cartridge replacement per year. Don't pay for the constant aggravation and expense of continuously replacing those small, costly and less effective filter replacement cartridges, that are so small that they can require filter replacements every other week.
  • Model: UCT100
  • Measures: 6-1/2" x 10" with included stand.
  • Rated Capacity: 600 gallons per cartridge (system includes one filter cartridge)
  • Housing Construction: Solid Surgical Stainless Steel
  • Owners Manual: Manual Included
Customer Reviews
  It works really well and generates extremely refreshing water. The installation was straightforward. For what you get, the price can't be beat!
  Reviewed by:  Rob Kuchta from Boulder, CO. on 1/7/2014
  So far so good. Seems worth the price to swing for a stainless steal casing versus other cheaper plastic brands since you will own it for life. Check the size of your cold water valve before you order. I had a 1/2" valve and had to replace with a 3/4" valve for the filter system.
  Reviewed by:  Damon from Bishop, CA. on 1/6/2014
  The water filter was easy to install. I love the stainless steel housing. It looks very sturdy. I can already see it will be easy to replace the filter, not like the flimsy plastic water filter I had previously that was a struggle everytime I changed the filter. The water tastes good and so far I am very pleased.
  Reviewed by:  Margaret Rodrigue from Scarsdale, NY. on 6/28/2013
  Excellent bargain for a top quality undercounter water filter. Documented certifications. Coconut shell carbon makes great tasting water. Well designed.
  Reviewed by:  jwiliam from Kansas. on 8/21/2012
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