3M Aqua-Pure 3MFF100 Under Sink Water Filter Reviews

The 3M Aqua Pure 3MFF100 is an under sink water filtration system that’s built to great quality. From its capacity to its filtration capability and water flow rate, everything is well balanced to ensure not only optimum performance but also long term use.

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Filtration Performance

The 3M Aqua Pure 3MFF100 is an NSF standard 42 and 53 certified filtration system plus it’s compliant to CSA B483.1. What this means is that it’s tested and certified to remove a wide range of common water contaminants.

The unit is equipped with an advanced triple-stage filtration process comprising of a nonwoven media, a pleated sub-micron membrane, and then a composite activated carbon block filter.

The nonwoven media makes up the 1st stage and it helps capture the larger particles in the water as it moves through the filter.

The pleated sub-micron membrane is fitted in the second stage and it effectively deals with the tiny particles lingering in the water reducing them down to 0.2 microns. It also helps remove other harmful contaminants such as lead, parasitic protozoan cysts, and select VOCs like benzene and p-Dichlorobenzene.

The 3rd stage is the carbon block filtration media which significantly reduces chlorine and other chemical contaminants that cause tap water to have an unpleasant taste and odor. Through these three effective filtration stages, the system is able to deliver great-tasting, filtered water that’s clean and healthy for drinking or cooking.

Capacity and Efficiency

Now the other thing you will like about this 3M Aqua Pure 3MFF100 model is that it provides a maximum filtration capacity of 6,000 gallons which is the third-highest on this list behind Woder WD-S-8K-DC at 8, 480 gallons and CuZn UC-200 at 50,000 gallons.

With this large capacity, it will perform efficiently for up to 12 months or more depending on the condition of your municipal water.

Another key feature is the flow rate. It’s designed to deliver up to 2.5 gallons of filtered water per minute which is the highest rate we’ve covered in this review.

You will get your filtered water much faster than your ordinary kitchen faucet and you can expect little loss of water pressure as commonly seen when using certain under sink water filters.

Installation and Maintenance

The 3M Aqua Pure 3MFF100 does not require a separate dedicated faucet as it uses a standard or regular kitchen faucet, so it’s easier to install and there is no hole to drill.

The package comes with the fittings and tubing that can fit most water supplies, plus it is compact requiring minimal under sink space.

The filter cartridge change-outs are fast and easy as well plus you won’t have to do it more often since it can last up to a year. The head assembly features a shut-off valve which allows you to change the filter cartridge without having to shut off your water supply.

If you want an enduring under sink water filtration system that’s well made and has good qualities, then the 3M Aqua Pure 3MFF100 should be one of your top considerations.


  • Significantly reduces chlorine along with other harmful contaminants
  • Removes nominal particulate class 1 down to 0.2 micron
  • High filtration capacity and water flow rate
  • Easier to install and to replace the filter cartridge
  • Can handle maximum operating pressure of up to 125 psi
  • Comes with a 1-year limited warranty


  • Does not filter out fluoride
  • Not ideal for purifying untreated (not chlorinated) water

Price & Rating

Product3M Aqua-Pure 3MFF100 Under Sink Water Filter Reviews
Brand3M Aqua-Pure
Rating4.2 out of 5 stars (More than 100 reviews)
Recommended price318.62 USD (Check the latest price at Amazon.com)

Product Specification

FeaturesBuilt-in shut-off valve
FiltersAdvanced triple-stage filtration process
Filter changing indicator4.9 x 1.5 x 2.8 inches

Images Gallery

3M Aqua-Pure Under Sink 3MFF100 Water Filter Reviews
3M Aqua-Pure Under Sink 3MFF100 Water Filter cartridge
3M Aqua-Pure Under Sink 3MFF100 Water Filter inside
3M Aqua-Pure Under Sink 3MFF100 Water Filter required installation tools
3M Aqua-Pure Under Sink 3MFF100 Water Filter in real life