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  • Watts 500320 3-Stage Undercounter Drinking Water Filter with Ultraviolet
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Watts 500320 3-Stage Undercounter Drinking Water Filter with Ultraviolet

by Watts
| 3 answered questions

Price: $135.00 & FREE Shipping. Details
Only 13 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
  • Reduces lead and cysts
  • Reduces chlorine taste and odors and particulate matter from the drinking water
  • Unique 3rd stage UV unit ensures high quality drinking water
  • 1,350 gallons capacity
  • Includes an AC adapter
See more product details
2 new from $135.00

Amazon Water Filtration Guide
Know What's in Your Water
Compare pitcher filters, dispensers, and faucet mounts in Amazon's Water Filtration Guide. Choose the filtration device that best meets your needs. Learn more

Frequently Bought Together

Watts 500320 3-Stage Undercounter Drinking Water Filter with Ultraviolet + Watts Premier 560017 Two Stage Green Carbon Annual Replacement Filter Pack + Watts Premier 560088 Lead, Cyst, VOC Carbon Block Two Stage Replacement Filter Pack
Price for all three: $179.21

Buy the selected items together

Product Information

Technical Details
Part Number 500320
Item Weight12.8 pounds
Product Dimensions4 x 6 x 16 inches
Item model number500320
Item Package Quantity1
Warranty Description1 year
Additional Information
Best Sellers Rank #167,216 in Home Improvement (See top 100)
Shipping Weight12.8 pounds (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Shipping Advisory:This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
Date First AvailableJuly 19, 2006

Product Description


The Watts Premier Filter-Pure UV-R Water Filtration Device combines high-quality sediment- and carbon-block filtration with the added power of ultra-violet water treatment to provide cleaner, healthier drinking water. Featuring a compact, space-saving design, the UV-R is perfect for houses, apartments, and RVs, and it can be installed in a matter of minutes.

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Ultra-violet treatment provides cleaner water straight from the tap.

During the lifecycle of a single filter, you can save up to 16,000 plastic bottles from being deposited in landfills.
Carbon Block Technology and UV Water Treatment
Featuring a powerful ultra-violet chamber, high-quality sediment filter, and coconut shell carbon block technology, the Watts UV-R effectively reduces sand, silt, sediment, rust, chlorine, and unpleasant tastes and odors from water. Ultra-violet light is a highly effective disinfectant, and when used to treat your tap water, it will provide cleaner, safer water that you'll love drinking.

Portable and Easy to Install
Installing the UV-R is a breeze, and the entire system fits easily under any countertop. In particular, users of campers or RVs will appreciate the space-saving design and the simplicity with which the unit can be moved from one place to another. Due to the UV component of the water filtration system, a standard 110-volt outlet is required.

The Importance of Drinking Clean Water
Water is critical to proper food digestion, kidney health, brain function, blood health, joint functionality, and more. It's important to make sure that the water you drink is devoid of contaminants. Thankfully, using a Watts water filtration device will ensure consistent quality for all of your drinking and cooking needs. In fact, when you use Watts' high-quality certified water treatment devices and filters, your water will be free of chlorine taste and odors, particles, and many other contaminants that can be detrimental to your health.

*Please refer to the Performance Data Sheet for the complete list of claims for which this system is certified.

Not only is the UV-R a healthy choice for you, but it's also a healthy choice for the environment. This filter helps you minimize the harmful environmental consequences of buying bottled water. Incredibly, if a mere ten percent of North America's bottled water intake were reduced by switching to home-filtered water in reusable containers, we could eliminate:

  • 133,000 trucks driving an average of 500 miles--saving nearly 12 million gallons of diesel fuel
  • Over 100 million pounds of greenhouse gasses--equal to taking 1,100 cars off the road annually
  • 213 million pounds of PET--equal to 1.5 million barrels of crude oil or improving the PET recycling rate by 10%

Depending upon which Watts water-filtration product you use, you can prevent up to 16,000 half-liter bottles from being deposited in landfills--all in the time it takes to use and replace a single filter.

The Watts Premier UV-R Water Filtration Device is backed by a three-year limited warranty.

What's in the Box
UV-R unit with mounting bracket (complete with UV and filters), standard faucet assembly, parts bag, and manual.

Compare Water Filtration Devices





Num. of Filtration Stages122335
Arsenic, Nitrates,   
Chrome, TDS,   
Perchlorate, Turbidity   
Dimensions (L x W x H)6 x 6 x 1414 x 6 x 1614 x 6 x 169 x 3.5 x 146 x 4 x 1617 x 17 x 6
Replacement Filters5-Mic Carbon BlockPurifier Filter Pack560088560039560017Annual Filter Pack

Product Description

500320 Features: -Under counter filtration system.-Ultra-violet filtration is achieved by using ultraviolet lamps: Water is sent through a flow chamber or housing; As the water passes by the UV lamp, the microbes in the water are exposed to the UV rays.-Accepts all watts, standard 10-inch replacement filter elements for simple easy to find replacement filters.-Stage one: Five-micron sediment filter reduces dirt, sand, silt, sediment, and rust.-Stage two and three: Two five-micron coconut shell carbon block filter reduces chloramine, chlorine taste, and odor.-Stage Three: UV chamber.-Filter should be replaced every 6 months or 600 gallons, whichever occurs first.-Long-reach chrome faucet.-This system can be used for the supplemental bactericidal treatment of disinfected drinking water; The system is only designed to reduce normally occurring non-pathogenic, nuisance microorganisms, and is not intended for the disinfection of contaminated water. Includes: -Includes everything needed to install under your counter. Assembly Instructions: -Assembly required. Dimensions: -16'' H x 6'' W x 6'' D, 12 lbs. Warranty: -Manufacturer provides six months replacement warranty.

Customer Questions & Answers

Customer Reviews

3.2 out of 5 stars
5 star
4 star
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2 star
1 star
See all 8 customer reviews
The second time I returned it for my money back.
I would not recommend this system just because of one cheap plastic part that is required to install this filter.
Based on this fact I would not recommend this unit to anyone.
Paul D.

Most Helpful Customer Reviews

16 of 16 people found the following review helpful By dw on September 12, 2009
We have a well over a pasture and it gets contaminated. We discovered that some of our intestinal problems were related to Giardia and Chryptosporidia. Boiling and distilling water took a lot of time and energy - very costly. I didn't like the idea of whole house UV because you have to leave it on all the time. We don't have room for the chlorine drip tank system. This small, inexpensive, easy to install system in combination with some poly carb tanks has given us biologically safe water to drink without having to haul it from the store. Also store bought water come in plastic that has to be recycled and can be contaminated with bisphenol-a. We turn this system on only once or twice a week to fill up the drinking water containers. I learned that turning on/off the bulbs substracts 6hrs. from the bulb life. But if you only turn it on once of twice a week, you still extend the bulb life. This product has been a great solution for us.
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13 of 13 people found the following review helpful By billmarz on January 20, 2011
Verified Purchase
This product is made with cheap plastic parts. I have nothing against plastic and understand it is good for plumbing parts because it is smooth, moldable and resists rust. What I am saying is that this product is made with cheap, thin, brittle plastic. I had to return it twice. The first time a small plastic fitting was broken. Actually I'm glad it broke before I had it entirely installed. The second time I returned it for my money back. I installed the new unit only to find it was unable to withstand the water pressure when the faucet was off. A small cheap hose would come flying off and send water everywhere. This was a part that was manufactured and assembled at the factory and nothing to do with my installation. On top of this I had to go on line to the WATTS website to get assembly instructions, the unit comes with a one page completely oversimplified instruction sheet. I recommended Amazon discontinue selling this item.
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14 of 15 people found the following review helpful By RG on December 30, 2008
Verified Purchase
I have looked for an economically priced all in one unit that has a UV stage. This unit is made in USA and is very easy to install. Quality parts and craftsmanship. I researched this manufacturer before I purchased and was quite satisfied. I recommend it to anyone.
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8 of 8 people found the following review helpful By Kenneth R. Ramach on May 6, 2009
This was very easy to install and seems to be working very well. Our only concern was the marked difference in the cost of this product versus more expensive models. Water flow is great.
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