NU Aqua 3 Stage Whole House Water Filtration System

Save $65.00
Nu AquaSKU: WU-STG3-H1

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Sale price$384.95 Regular price$449.95


120 Day Satisfaction Guarantee

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The NU Aqua 3 Stage Whole House Water Filter is just what your entire house needs. From your shower to your sinks, when you want refreshing, clean water every time you turn the tap, this whole house water gives you fresh water on demand.

This professional-grade filtration system isn’t just good for your home, it’s good for restaurants, business offices, and even apartment complexes. Each stage of filtration scrubs your water of imperfections, leaving your household or business with nothing but clean water that’s safe to use, safe to drink, and free of odors. Here’s how they work:

Stage 1- Sediment Filter

This is where it all begins. Incoming water is run through this filter to remove tiny particles from your water like rust, silt, dirt, and even insect parts. This helps assure that the water you receive is free of these contaminants and won’t clog dishwashers, ice makers, and even pores in your shower heads and faucets.

Stage 2- Granulated Activated Carbon (GAC) Filter

The second filter your water passes through is a GAC filter. The carbon in this filter adsorbs hundreds of chemical-based contaminants including chlorine, pesticides, volatile organic compounds (VOC’s), industrial chemicals, lead, mercury, and benzene. These contaminants stick to the carbon media and leave your water free of high concentrations of chemicals harmful to your health.

Stage 3- Carbon Block Filter

The last filter your water passes through will be the carbon block filter. A 20 inch compressed 5-micron carbon block filter polishes your water before it hits the faucet. Here the water is polished and filtered to remove bad taste and odor-causing chemicals like chlorine, chloramine, sulfur (that rotten egg smell), and even trihalomethanes, which are byproducts of disinfectants and cause cancer.


Of course, none of this would be possible without high-quality components. The NU Aqua 3 Stage Whole House system offers industrial-grade components, from the filter housing to the mounting brackets and all connections. With high capacity, 20” cartridges in each filter housing you’ll be able to filter thousands of gallons of water without fouling. When it’s time to change filters, it’s a simple as taking off the filter housing, slipping in the replacement cartridge, and putting the housing back on.


Whether you need clean water for your entire apartment complex, lots of water for your business, or you just want refreshing water from every faucet in your home, the NU Aqua 3 Stage Whole House Water Filter is exactly what you need. Take better showers, make better coffee, and give yourself the clean, refreshing water you deserve.

Product Specifications:

  • Heavy-duty filtration gives your entire house or business the freshwater you need for drinking, cooking, cleaning, and more.

  • Gets rid of contaminants in your water such as rust, silt, dirt, chlorine, fluoride, pesticides, volatile organic compounds (VOC’s), industrial chemicals, lead, mercury, and benzene

  • Large 20-inch filters withstand high amounts of water.

  • Flow Rate: 15GPM

Customer Reviews

Based on 11 reviews
Carlos Garcia
Easy install

Cleaner water then without the system.

Mr. Fixit
Love it

We will definitely be ordering more of these! The addition of the gauges is awesome.

Tim Peterson
First Impressions

Just finished installing the whole house filter. Ordered during the pandemic and took a long time to arrive, knew that in advance. Very sturdy stainless or chrome plated nice. I used 1” pipe and have increased pressure now (80psi from city and 65psi out of regulator), I had 3/8” for whole house before. I was worried about over tightening the plastic connections and now they leak, will use paste instead of teflon next. I had some random smells and haven’t noticed any since so thumbs up. One of the gauges doesn’t read past 8 psi but haven’t spoke to customer service yet. They are really nice oil filled gauges. No leaks from factory fittings or filter seals. You will need some accessible space to install, working great in my 100+ year craftsman so far. Hopefully I can do another review in 6 months or filter change.

Instant improvement in water quality.

Easy enough to install but I wish the manual mentioned that the filter inlet and outlet are 1" NPT.

GARY Bryant
Filtered Mountain Water

Installed couple days it is doing great no problem to install. I did the installation myself with no problem the filter is doing it's job.