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100US - Under Sink Water Filter

100US - Under Sink Water Filter

Part Number 3300Q
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The 100US KDF/GAC Under Sink water filter is our most convenient, practical, and popular water treatment system. This commercial grade. in-line water treatment unit is designed for municipally treated COLD WATER ONLY. Simply attach this unit to the cold water line underneath your sink and enjoy clean, clear, good tasting water directly from the faucet. This unit is also compatible with water coolers, fountains, and ice makers. It features state-of-the-art engineering and design that has surpassed the most rigorous and demanding quality assurance testing. Patented KDF Process Media are high-purity copper-zinc formulations. They reduce contaminants in water using oxidation/reduction (redox). KDF media provides extended life, decreased maintenance, control of micro-organisms, and improved performance. GAC - Granular Activated Carbon filtration media bed reduces impurities, heavy metals, bad tastes, odors, colors, etc. 

We have great news we have recently added a great addition to the 100US, your order of the 100US now includes a pressure regulator. You no longer will have to worry about too much pressure going into the unit with this water restrictor.

The Water Marque 100US Water Filter replaces NSA model 100SX or NSA model 100S. 

Filter vs. Bottled Water: Cost savings est. $13,400 over 3 years
Capacity : 3 Years or 15,000 gallons under normal use.
Media : KDF/Granular Activated Carbon.
Fittings: Inlet/Outlet 3/8 Inch
Dimensions: Height -14, Diameter 5
Average Weight: Dry- 7lbs., Shipping -8lbs.
Warranty: 1 Year, Pro-rata.

*The 100US compression fitting has been discontinued.

Customer Reviews View All Reviews
Rating Homeowner
Appreciate the quality of your water filter and the taste of the water when run through the filter. You need to correct your instructions for installation of the filter. You switched the inlet and outlet on the filter but your directions don't reflect this. Only a note in the bottom of the box. Please correct as I had to install twice!
  Reviewed by:   from Peru, Indiana. on 8/28/2016
Rating 100US Under Sink Water Filter
We've truly enjoyed the ease of drinking filtered water straight from the tap for the last 3 years. We haven't missed lifting huge 5 gallon bottles, for sure! We recently replaced our first filter with confidence. Like the first we had no problem with installation and are enjoying the clear, filtered water.
  Reviewed by:   from Hermitage, TN. on 8/9/2016
Rating Mr
We have used the 100US (or equal) for many years and have been very satisfied. However, a replacement 100US installed a few weeks ago leaks from the bottom fitting even after cutting off the end and replacing the plastic sleeve and tightening. I have made up these compression fittings many times but this the first one that has leaked. As under-sink access is not the best, it would be a produce improvement if the bottom terminated outside of the support ring for easier access the the fitting.
  Reviewed by:   from Evergreen Colorado. on 4/25/2016
Rating 100US - Under Sink Water Filter
We purchased a house that had a filter similar to this one, but now discontinued, we were greatly pleased that the company was able to offer a substitute/replacement product that performed equally well. We were without filtered water for about 6 months, and were so relieved to be able to taste and smell the difference with our newly replaced model. We would recommend this company and its prompt and thorough service freely and often. It makes such a difference and installation is quite easy.
  Reviewed by:   from Grand Rapids, MI. on 2/23/2016
Having been using this filter since 1989 whe first introduced to NSA and I believe that it is still the best vaule on the market for filtering your drinking water.Why would any one want to replace a filter under counter every six months or on your frig when you can go 3 yrs before replacing it.Life is busy!!
  Reviewed by:   from Chapel Hill NC. on 1/20/2016
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