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POLARIS™ III - Aquaspace (1 - 1½ Bathrooms)


Aquaspace Whole Home System (8" x 44" Tank)

The PO-300A is a Point-of-Entry (Whole House) filter. The Polaris III will filter a maximum of 5 GPM and is suited for ¾" incoming water lines (1 - 1 ½ bathrooms).

The unit comes with a Straight In/Out Valve with 1 micron pre-filter. The unit requires professional installation.

Additional Information below...

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Collections: Whole House

Aquaspace Tank - PO-300A

An Aquaspace Whole House Tank is your best defense against chemicals and VOCs. Our Aquaspace Compound, is a special blend of carbonaceous materials designed to remove the widest range of chemical contaminants. It is a water treatment compound developed using NASA Filtration Technology and is charge modified to increase the potential of the carbon. Aquaspace Water Systems will also retain beneficial dissolved minerals such as Calcium, Magnesium, and Potassium that may be found in water and are essential for good health.

The Aquaspace Compound filters out unwanted organic and inorganic chemicals and doesn’t lower the pH value of the water. It has been rigorously tested and certified by the National Testing Laboratories according to ANSI/NSF Standards to reduce:

  • Taste & Odor
  • Organic & Inorganic Compounds
  • 99% of Lead
  • 99% of Chlorine and Chloramines
  • 99% of gases including:
    • Radon
    • Argon
    • Krypton
  • 99% of Trihalomethanes
  • 99% of Organic Halides
  • Numerous Industrial Solvents that can be found in:
    • Industrial cleansers
    • Gasoline and other fuels
    • Degreasers
    • Chemical manufacturing by-products
    • Various manufacturing processes
    • Chlorination of water
    • Disinfectants
    • Wood preservatives
    • Weed control
    • Herbicides & Pesticides
  • Trace Pharmaceuticals and Hormones that have been disposed of improperly into our water systems
  • 55 of the most common VOCs (Volatile Organic Compounds) such as Chloroform & Benzene.

Did you know a whole house tank will improve your air quality?

That’s right! An Aquaspace Whole House filter will not only improve your water quality, but your air quality as well. Many gases and volatile organic compounds (VOCs) are actually waterborne, meaning they travel in water, and can evaporate into the air during the use of everyday activities and appliances requiring water, therefore entering your homes atmosphere and effecting the air you and your family breathe.

If you are concerned about VOCs and household gases like Radon, whole house systems are the way to go. The Polaris whole house systems are known as “POE” systems. POE stands for Point-of-Entry, meaning it will filter the water at the point in which it enters your home. POE systems are the ONLY way to prevent harmful waterborne gases and VOCs from escaping and entering your homes atmosphere.

VOCs and gases can be present in your local water supply and can travel into your home via your pipes. Once in your pipes, they can evaporate into your household atmosphere during the use of everyday appliances. This means that when you fill your bath tub, run your dishwasher, or use your sink—VOCs and dangerous gases could be escaping into your air. For example:

If you are on municipally treated water (75% of Americans are), chlorine is most likely used to disinfect your water. Due to the reaction of chlorine with trace organics in the water, chlorinated water supplies will have some amount of trihalomethanes (THMs). Chloroform is an example of a THM. THMs are a subset of VOCs. Chloroform is a VOC that acts on the central nervous system and is a known carcinogen. Studies show that exposure to waterborne VOC’s such as chloroform is SIX times greater through inhalation and skin absorption than from drinking water directly. VOC’s like chloroform evaporate rapidly from your water during normal household activities such as dish washing, using the garbage disposal, doing the laundry, cleaning, bathing, and flushing the toilet. At normal shower temperatures, 50% of chloroform in water escapes into the air—before the water even reaches the shower floor!

This means Point-of-Use systems that filter the water right before you use it (like a pitcher or kitchen sink filter), might not be doing enough. While they certainly will offer you clean, drinkable water, they won’t do anything to protect you from airborne gases or VOCs that may have entered your household atmosphere through your dishwasher, washer machine, or shower usage. As mentioned previously, we absorb six times more chemicals through bathing and breathing each day, than we do drinking water. That’s why we highly recommend using POE systems (Whole House Filters) to provide you with not only clean, great tasting, healthy water all throughout your home, but a safe household atmosphere for you and your family.

Are they more convenient?

100%. It’s clear POE systems are your best defense against waterborne chemicals and gases that can escape into your air AND for clean drinking and bathing water. But not only do they offer you a cleaner air quality, they also offer you convenience. Imagine clean water from any source in your home. No more having to walk all the way down to the kitchen for a clean drink of water. Any faucet in your house can offer you the same clean, chemical-free water. Chlorine-free water will be available from any faucet or shower head, allowing you to experience a new meaning of clean. Showering and bathing will never be the same! The water you use for brushing your teeth, washing your hands and face, even the water you use for your pets will be clean and healthy. You won't have to worry about what's in your water any longer.

What about installation or replacements?

All our Polaris Whole House Systems come with installation and instruction sheets. The Polaris III comes with a pre-sediment filter installed directly before the tank to ensure no sediment gets into the tank. The sediment filter preserves the life of the compound within the tank and helps prevent it from clogging prematurely. The Polaris III does not need access to a drain and does not need to be backwashed. The sediment filter is our model: AP-100-4N1. The 4N1 uses gradual filtration technology and has four stages of sediment filtration allowing it to last longer than a typical single section cartridge. It is capable of filtering sediment down to 1-micron in size.

Note: Only 1 sediment filter is required. For customers interested in both the PO-300A and PO-300F tank, only 1 sediment filter is required.

Our tanks also require a professional plumber for installation. We highly recommend coordinating with your local plumbing company to do the installation, and to determine any additional costs for labor that may be involved in servicing the tanks.

polaris whole home water filter refill media kit

All our tanks come with a rated time and gallon capacity. For Aquaspace tanks the lifespan is 12-18 months or 350,000* gallons. We typically say its best to replace the media on a yearly basis to ensure optimum water quality. 

Replacement media kits are available and are determined by the size of the tank. Replacing the media does not require a professional plumber, however we recommend having someone with general handyman skills available to do the replacement. A set of detailed instructions will be provided.

*based on a PO-300A sized tank (8” x 44” tank).

The Polaris III Fluoride & Heavy Metals Whole House Filter does not share the same life (capacity) as our Aquaspace Compound, and as such we offer the stand alone system, which can be replaced independently to our VOC Reduction Aquaspace unit. See table below.

The PO-300F tank (Fluoride & Heavy Metal) is ideal for both municipal and well water. For municipal water it will provide you with clean fluoride-free water for both drinking and bathing. For well water it will protect you and your family from potentially dangerous heavy metals that may be in your well.

Investment in your health and your home.

Whole house water filters are the most efficient form of water filtration and when compared to the cost per gallon of clean water, the most economical. For example, our Polaris III will give you 350,000 gallons of clean water. That comes out to less than $0.005 per gallon, that's less than ½ of one cent! Not only are whole house filters a great investment in your health, they are a great investment in your home. A whole house water filter adds to the value of your home. In fact, Forbes magazine called adding a home water filtration system a “serious game changer” and will “increase your home’s value and impress buyers with filtered water directly from any faucet in the house — it’s pure luxury, and this amenity will pay off now and in the future when it’s time to sell.”

Read some of our Whole House Testimonials.

We’re here to help

Original Aquaspace Whole House Tank

Aquaspace Water Systems has been at the forefront of the water quality industry for decades. We’ve continually been improving and testing our systems to ensure our customers get the healthiest possible water. We also understand you may have additional questions along the way, both before and after purchasing. That’s why we’re here to help. If you have any questions or would like to speak with our certified water specialist, you can reach out via phone (301) 568-0200 or email ( Our information can be found on our Contact Us page.

AQUASPACE… The Science of Clean Water™

Aquaspace - PO-300A Fluoride & Heavy Metal - PO-300F
Capacity 350,000 Gallons or 12-18 months, whichever occurs first
100,000 Gallons or 6-9 months, whichever occurs first
Size 8" x 44" (tank) Overall Height 48
Flow Rate 5 GPM Maximum (1 - 1 ½ bathrooms)
Max Temp. (Use cold water line only)
Valve Straight In/Out Valve. Available in ¾" pipe fittings.
Materials All the medias and components that are used in all of our filters are manufactured using FDA Food Grade/NSF approved materials and are Industry Standard.
Guarantee One full year for material and workmanship. Due to varying water quality, the filter section is not covered under warranty. Maintenance free.

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