WINTER BLOWOUT SALE: 50% Off and Free Shipping

Whole House Water Filter System- FS1000-1 Million Gallon

1,000,000 gallon capacity.  Long-lasting water filtration for great-tasting, bottled water quality at every tap in your entire home.  Our Catalytic Carbon & KDF media removes chlorine, chloramine, VOC's, Lead, Arsenic, Industrial Solvents, heavy metals, and more.

Number of Baths-GPM
System Type
Free Shipping

Free Shipping and 50% off factory direct savings

90 Day Money Back Guarantee

Try it and love 90 day money back guarantee.

Lifetime Warranty

Lifetime guaranteed on tanks and valves.

Easy Installation

Premium Certified components for peace of mind.

How it works

How it works

4 Stages of Filtration

  • Stage 1.A sediment pre-filter with a 5-micron rating efficiently captures rust and debris from water sources. Its design prevents these larger particles from causing clogs or damage to plumbing and appliances. Replace the pre filter inside the blue housing every 8-10 months.
  • Stage 2.Using Votrex technology our uplow design tank mixes upward through the fiberglass mineral tank. This step eliminates the need for electricity or backwashing to reset the media bed.
  • Stage 3 & 4.Our proprietary catalytic carbon/KDF media is effective at removing chlorine, chloramine, VOC’s, Industrial solvents, heavy metals, lead, arsenic, chromium, PFOS, trihalomethanes and more. The porous structure of activated carbon provides a large surface area for adsorption as well as KDF media, allowing it to attract and trap these impurities as water passes through the filter.

Innovative system for clean drinking water at every tap in your home

A whole-house water filtration system can provide clean drinking water at every tap in your home. These systems work by removing impurities and contaminants from your water supply, ensuring that the water you use for drinking, cooking, and bathing is safe and healthy. By installing a whole-house water filtration system, you can enjoy peace of mind knowing that you and your family are using clean, pure water in every part of your home.

Driven By Performance

Tell Me More

Tell Me More

Why Filtersmart?

How does carbon/ KDF filtration work?

Our catalytic carbon mix is effective at removing chlorine, chloramine and other in organic compounds. Adsorption pores are the only regions within an active carbon particle with sufficient adsorption forces to adsorb impurities.

The KDF media mixed within the carbon media is effective at removing heavy metals, lead, arsenic, chromium, arsanic, trihalomethanes and more.  KDF  use an advanced oxidation process to remove chlorine, iron, heavy metals, and other contaminants from your water supply.  KDF stands for kinetic degradation fluxion.  KDF media consists of high-purity copper-zinc granules. Carrying opposite electrical charges, these two materials combined eliminate the widest possible range of harmful contaminants through an electrochemical process known as oxidation-reduction, or redox.  Non-toxic, it contains no chemical additives and has zero adverse health effects.

Clean, pristine water and softer skin and hair!

Ingesting chlorine and chloramine treated water has negative health effects and studies show that the majority of our exposure to chlorine is through absorbing chemicals during showers and baths. With FilterSmart, shower and bathe in water that is free of chlorine and other harmful chemicals. Plus, with the removal of drying agents, you will immediately feel the benefit of filtered water at every tap and bath in your home.



Overall Satisfaction Rating
Based on Over 1,700+ Reviews

A total solution to all your water Problem

Filtersmart whole house water systems are easy to install, maintenance free, and are guaranteed for life. Instantly improve the quality of your water at every tap in your home.

Lifetime warranty on tanks and parts against manufacturer defects.

FilterSmart warranty ensures the customer or original owner that the tank, valves, fittings etc. will be free from defects under typical use. This warranty does not cover items that were damaged from improper use or installation. If the items are damaged due to misuse, neglect, improper installation, accidents, physical damages, or damages resulting from misuse based on the specs or recommendations, the warranty will be voided.

Try our reverse osmosis for 90 days risk free. If you are not 100% satisfied we will gladly give you your money back.

90 Day In-Home Trial:

We are so certain that you will see the value and benefits of using your FilterSmart Water System each day that we are happy to offer a risk-free 90 day in-home trial. If you are not completely satisfied and don’t find FilterSmart to meet your expectations, just simply return it within 90 days for a full refund. FilterSmart stands behind its products and our commitment to your satisfaction is our top priority.

Whole House Water Filter FAQ

How Large Are The Tanks?

Our 1-3 Bath 12 GPM systems uses 9 x 48” tanks and sits about 52 inches tall, including the valve head. The 4-6 Bath 15 GPM system uses 10x54” tanks and sits about 58 inches tall. For single tanks, we recommend 20x10” space. For our combos, we recommend a 30x10” space.

What Are The Tanks Made Out Of?

Our mineral tanks are built out of USA-made high-spun fiberglass, and they’re certified for safety. We offer a lifetime guarantee against manufacturer defects. Unfortunately, not all tanks on the market are made to such standards.  The tanks are protected by a premium stainless steel cover.

If I Get The Filter, Can I Add The Water Softener Later?

Yes. You can get our whole house water filter system, and then, if you’re unsure whether you need to treat the hard water, just add our salt free softener to make a combination system later.

How Does Activated Carbon Work?

Our tanks come pre-loaded with granular activated carbon (GAC). To remove contaminant impurities, activated carbon works through the process of adsorption. Each particle, or granule, of carbon provides a large surface area, or pore structure, allowing contaminants the maximum possible exposure to the active sites within the filter media. One gram of activated carbon has a surface area in excess of 3,000 square meters (32,000 square feet). The large surface structure, plus the prolonged contact time, maximizes water filtering capacity.

Does The System Work For Well Water?

Yes. However it does not remove iron, hydrogen sulfide or manganese. 

How Often Does The Media Inside The Tank Need To Be Replaced?

The carbon media comes with a 5 year or 1,000,000 gallon guarantee. We guarantee the carbon reducing chlorine to undetectable levels for that period. When the carbon media needs to be replaced simply, order a replacement bag of carbon, dump out the expired media, and refill the tanks with new media. Other companies require a whole new tank purchase. With our reusable tanks we save our customers money in the long run.

How Often Do I Change Out The Pre-filter?

The sediment pre-filters (inside the big blue filter) need to be replaced every 8-10 months. This can be done by any homeowner.

Is There A Reduction In Water Pressure?

No. If correctly installed, our systems do not change or drop the water pressure.

Who Installs The System?

Anyone with basic plumbing skills can easily install our systems. If you don’t know someone with basic plumbing skills, any local plumber will have no problem with the installation. If you need help finding a plumber, try Angie's List or Home Advisor for a list of local plumbers in your area.

Where Is The System Installed?

Filtersmart whole house inline water filters are installed on the main water line at the home’s point of entry. The point of entry (POE) differs from house to house, but it’s usually either in the garage or outside – right by the water shut-off valve. Your local plumber will determine the point of entry and, by extension, the best point of installation. You also may have an existing water softener loop where the system would be installed, but virtually any plumber will be able to determine the best place to install the system.

Pay at your own pace

With Affirm, you can choose the monthly payments you like best - with no late fees or surprise.

Would you like to finance your filtration system?

Make easy monthly payments over 3, 6, or 12 months. You can finance the purchase today. Simply add product to cart and click on the Affirm logo at checkout to see if you qualify. Quick and easy and with no hidden fees.

Just Select Affirm at checkout


1,700+ 5 Start Reviews

Tried and Tested reviews from our amazing customers all over the U.S.
Verified Buyer
“Great value”
whole house carbon in metal case
October 12, 2022 by Michael L. (MN, United States)

“I just received this, I’ll install it soon. It is what I expected, I’m hoping the carbon filter will take care of odors. I really like that I can replace the carbon media.”

Verified Buyer
“Great value”
Whole house carbon filter with metal case
September 14, 2022 by Arnold P. (CA, United States)

“Best whole house filter on the market. I got the option with the larger GPM and flow and have noticed no pressure loss. Great water now at every tap and no bad chlorine smell in the bath. easy installation. A++ in my book.”


As seen on: