Authorized Multipure Independent Distributor #424611

Compare Water Filters With Facts And Reviews

What is the best water filter?

Comparing water filters is hard because most of them do not clearly have the information on their web site as to which contaminants their filters reduce, and many are not even certified by NSF. The first thing to learn is to beware of companies who make claims which are not backed up by NSF Certification. Anyone can make a claim about anything.

There are hundreds of water filters and to compare all of them would take a very big web site!

For this reason I am going to concentrate my comparison on Multipure, Aquasana and Brita, 3 of the most popular and well known brands:





Model Number




Retail Price




Cost Per Gallon
(Filter Replacement Cost)

$66.45 / 750 Gal.

$72.00 / 750 Gal.

$112.50 / 750 Gal.

Per Gallon "Cost Of Use"

9 cents
Per Gal.

9.6 cents
Per Gal.

15 cents
Per Gal.
Iowa, Wisconsin, Massachusetts, and Colorado Certified YES NO NO
Flow Rate (how fast water comes out of the filter - A low number means water comes out of the faucet more slowly) .75 gal/ per min. .50 gal/ per min. .58 gal/ per min


YES >99.9%


YES >99%


YES > 99%



Reduces MTBE

YES > 96.6%

YES > 87%



YES > 92.9%


YES >93.6%

Reduces PCBs

YES > 99.9%




YES >99.5%


YES 99.5%


YES > 99%


YES 98.4%

Reduces Chlorine

YES >99%

YES 99.3%

YES 97.5%

Reduces Lead

YES >99.3%

YES 99%

YES >99.3%

Reduces Cysts

YES > 99.95%

YES 99.987%

YES 99.99%

Reduces THMs

YES > 99.8%

YES > 95%

YES 99%

Reduces VOCs

YES > 95-99%*

YES > 94-99%

YES 99.8% (but less total # of VOC's than MultiPure)

Reduces Lindane

YES > 99%

YES > 99%

YES >99%

Reduces Alachlor

YES > 98%

YES > 98%

YES >97.5%

Reduces Atrazine

YES > 97%

YES > 97%

YES >94.1%

Reduces Benzene

YES > 99%

YES > 98%

YES >96.8%

Reduces TCE

YES > 99%

YES > 99%

YES 99.8%

NOTE: All Aquasana figures based on "Performance Data Sheet" from their own Company web site, all Brita figures are based on their own data sheet and Multipure figures are based on the Multipure data sheet.

The chart above shows clearly that Multipure is the BEST BUY. (Note that Consumer Reports magazine also names Multipure as a BEST BUY!)

Comparing water filters further, here is a comparison between Aquasana and Multipure based on the State of California certifications:

Here's Aquasana's State of California Dept. of Health Services Certificate for their counter-top model: (The contaminants that are filtered are highlighted in yellow.)

Aqusana California Dept of Health Certificate

As you can see, the Aquasana counter-top model is certified by the State of CA (but NOT NSF) to filter:
Cysts, Lead, MTBE, and VOC's (Volatile Organic Compounds is a whole group of contaminants, and is the same for both units under CA's certification system, so we have not included the list here, for either filter. You can find it in the full .pdf document, linked at the bottom of this page).

Now here is Multipure's State of California Dept. of Health Services Certificate for their 750 Models (now called Aquaversa), and others (the certificate is the same for the MPAD/Aquadome):

Multi-Pure's California Dept. Of Health Certificate

As you can see clearly above, Multipure's water filter reduces more contaminants than the Aquasana. To be exact, the Multipure systems are California-Certified (AND NSF-Certified) to reduce the following six contaminants which the Aquasana does not:

(The following information about these contaminants is taken from the U.S. Environmental Protection Agency's web page.)

Turbidity - "Higher turbidity levels are often associated with higher levels of disease-causing microorganisms such as viruses, parasites and some bacteria. These organisms can cause symptoms such as nausea, cramps, diarrhea, and associated headaches."
Asbestos - "Increased risk of developing benign intestinal polyps"
Mercury - "Kidney damage"
Chlordane - "Liver or nervous system problems; increased risk of cancer"
PCB's - "Skin changes; thymus gland problems; immune deficiencies; reproductive or nervous system difficulties; increased risk of cancer"
Toxaphene - "Kidney, liver, or thyroid problems; increased risk of cancer"

Multipure's carbon systems filter all six of the above contaminants in addition to ALL the ones that Aquasana filters.

So after carefully comparing Multipure to Aquasana here are our conclusions based on the facts:

1) Multipure's filters are certified by the NSF and Aquasana's are not.
2) Multipure water filters reduce more contaminants than the Aquasana as per the charts and documents above.
Multipure filters cost less to operate. While the original cost of the Multipure is a little higher, over several years it averages out to be lower than the cost of an Aquasana filter, since the Aquasana carbon filter has to be changed twice per year vs. the Multipure's filter only having to be changed about once per year.*
4) Multipure filters are also certified by the states of Iowa, Wisconsin, Massachusetts, and Colorado (all the states that regulate drinking water systems) and Aquasana's are not. This gives Multipure more credibility.
5) Multipure offers a 90 day Money Back Satisfaction Guarantee - that means you can return it for any reason within 90 days if you are not satisfied , for a full refund of the purchase price. This is compared to Aquasana's 60 day guarantee.

Once again, based on the simple facts, Multipure is obviously the best choice.


The Brita faucet model has an average of 2 and 1/4 stars out of 5 at

"I see a lot of previous reviews from other people who got sucked into this product. It's the biggest waste of $30 I have ever spent. It leaks, sprays water all over my kitchen, and if I, heaven forbid, turn the water on past low, it will just fall off. I know the initial assumption is "operator error", but I assure you, as an engineer who works for a consumer products company, I have installed the thing correctly. I have the most standard faucet you could find, and it leaks everywhere. When I contacted Brita about the poor quality of their product, they ignored me and never responded. And you better hope you never have to move. I am moving right now, and the little plastic adapter literally disintegrated in the faucet head and is stuck there. When I tried to remove it, the plastic just kept snapping off until now it is embedded into the faucet, which will probably now need to be replaced because of it. DO NOT BUY BRITA and DO NOT BOTHER WITH THIS PRODUCT!" - K. Wayne

The Aquasana has an average of 3 and 1/4 stars out of 5 at Amazon:

"I used to have an Aquasana but I had to replace the container system two times (or, to be exact, the 2nd time I requested a free replacement of the failing container system - since I didn't want to buy a whole new unit - but was rejected and so I returned the unused filter replacements). The problem is that the design of the container system is so bad that replacing the filters is really close to impossible without going through a lot of pain and in the end it becomes really impossible. Essentially the filters get stuck inside the container. Each time you have to replace them (every 6 months), it gets harder and harder to open the container. Well, bye-bye, Aquasana!"

"The filtering process is good, however, my unit only lasted a few Months before the faucet attachment stopped working correctly.

I had to remove the faucet mount so I could use the regular tap water, and then replace the mount when I wanted to filter the water.
The 'push/pull' button does not function properly.
Needless to say this got old real fast, and I recently threw the unit out, I will never buy this filtering system again due to the aggravation involved with the faucet mounting issue.
Let me clear this up, the unit attaches to the faucet well enough, but the push pull button does not function properly, it did work well for a few Months, then all of a sudden stopped working the way it is supposed to, which is why I would have to constantly remove the faucet mount attachment to use the regular function of the tap without filtering the water, i/e doing dishes etc. "


"1. The first thing you'll noticed when using the filter is that it takes it's own sweet time. If you think you're going to get a full size stream of water at full pressure -- think again. So, plan ahead -- factor in the fairly slow flow rate, and you'll be fine.

2. Everything functions as advertised. However, what is not mentioned is that the water diverter valve stem (the little metal button you pull on to divert the faucet water into the filter) does not always return itself to the off position when you turn off the water -- you have to push the valve stem back in to fully deactivate the filter. This may not sound like a big deal, but it can potentially destroy the filter! The filter elements cannot handle hot water according to the instruction manual which is included. If you use the filter, with cold water but don't remember to re-seat the valve stem to it's full off position, and you come back in a couple of minutes and turn on the hot water to wash your hands, the hot water will get unintentionally diverted into the filter unit and destroy the expensive filter elements. BE WARNED!

Other than the above mentioned items (one of which is potentially quite harmful to the filter) -- everything is fine. As long as you're not in a hurry, and always remember to push the valve stem back in you should be OK.

One final note is that someone else posted a review which states that the valve stem should never be operated while the water is on. The reason stated, is that the valve stem is fairly thin and can break if it is subjected to the stress of overcoming the faucet water pressure when diverting the water into the filter. "

The Multipure has an average of 4 and 1/2 stars out of 5 at Amazon:

"You can't go wrong with this one. I've owned it for almost a year, works perfectly. You only need to change the filter once a year. Is small enough to fit anywhere on the countertop you want to place it near the sink(s). Never drips, never a problem.

Looks attractive too in stainless steel. Easy to keep clean.

Can't recommend it highly enough.

"I've had this filter for 6 months and I am very pleased. Installation took just minutes without any tools. Filtered tap water tastes exactly like the Arrowhead bottled water that I used to buy, and it might even be cleaner... If you are comparing models, note that this particular filter also reduces Arsenic, a rare feature among countertop filters." [Note: only the 880 and RO models filter arsenic]

"This is a great water filter system that I have been using for years. I understand that the water is very highly filtered and much better than the regular Brita pitcher system I previously used. I also only have to change the filter once per year, and that's fairly easy to do. I think it also may be cheaper in the long run than the Brita, even with with initial high cost. Though it sits on the counter-top behind my kitchen water faucet, it is not in the way and looks nice-enough. The included faucet connectors worked well for my standard faucet. Highly recommended."

"We've had ours about a year or two now and it works great, water tastes great. Everyone in Berkeley seems to buy this brand after all their research so I admit I didn't do any myself but i'm happy with the results! "

Based on the water filter reviews it is clear that Multipure comes out ahead with a higher rating and higher customer satisfaction. Add this to the better warranty, more contaminants being reduced, NSF Certification and there is no doubt that the Multipure filters are not only the best filters but also cost less to operate.*

If you have any questions, please contact me here.

It is my hope that everyone will get off the plastic bottle habit and Go Green by using a filter that is certified by NSF to reduce the widest range of contaminants!

Thanks! And good health to you!

*This calculation is based on paying average prices on Multipure's cheapest counter-top system, and $59.99 every six months for an Aquasana replacement filter vs. paying $59.95 every 12 months for a Multipure replacement filter. At the end of 2 years you will have substantially less money invested into the Multipure than the Aquasana. From that point forward the Multipure will cost about $69/year to operate whereas the Aquasana will cost about $96-120/year to operate. Brita will cost more.