Water has become highly polluted and contaminated because of all the industrial wastes, agricultural wastes, house wastes, and all the other effluents released in the water bodies which eventually deep into the groundwater, and the end of the cycle is used by us. You can imagine the level of chemicals, unwanted minerals, and toxic stuff the water might be contained, we just can’t risk our lives because of the mistakes committed by others.

So, you need to install the best under sink water filters. It consumes less space, is very compact, and designed with faucets that match the kitchen interiors.

Few things to remember before you go ahead with your purchase- 

Capacity – A good water filter should had enough capacity of purifying water per day and throughout its lifespan.

Technology – Various technologies are used to filter water, you can go for methods that are eco friendly.

Flow of water – Some Water filters work on drip water functionality which consume loads of time, hence, go for the ones that give good flow of filtered water.

Microns – The less the microns it will be beneficial and the quality of water will be very high.

Top 10 best under sink water filters in Canada

#1. iSpring RCC7AK 6-Stage Reverse Osmosis Drinking Water Filter System with Alkaline Remineralization – Natural pH

      iSpring’s RCC7 is one of the favourite brands of water filters in North America. The under sink water filter follows the reverse osmosis that removes contaminants to 0.0001 microns, and the GAC filter makes the water more polished before finally delivering water from the faucet. It is thoroughly checked by systems for any air leaks, pressure and cycle resistance.


  • Removes solids, chemicals, minerals and waste dissolved in the water.
  • 6 stage RO system which remineralises the water and neutralises the pH.
  • Easy to install yourself.
  • 75 gallon per day capacity RO.


  • Does not filter BPA.

Walmart / TheHomeDepot

#2. Frizzlife MK99 Under Sink Water Filter System 

       Frizzlife M99 under sink water filter system makes your life fuss free by removing over 99% of contaminants from the water. The replacement water filter can be changed just within 3 minutes and automatically shuts water off for the replacement. Two stage advanced water purifier with 0.5 micron which maintains essential minerals in the water.


  • Water filter system helps remove 99.99% of lead.
  • Directly connect to the water filtration system without any extra faucets.
  • Two stage advanced water purification with an unique technology.
  • Takes less than 3 minutes to install.


  • Arrangements need to be made because hose and faucets don’t fit every countertop.

Frizzlife / eBay

#3. Filtrete 3US-PS01 Under-Sink Advanced Water Filtration System

       Filtrete water filtration system is a modern and advanced water filter that connects to your sink faucet or the bath faucets. It can be easily installed within 30 minutes and maintenance is hassle free. This water filter comes with ¼ turn filter changes and is NSF/ WQA certified.


  • Reduces chlorine taste, odour, residues and microbial cysts.
  • 2000 gallons capacity of the water filter system.
  • 5 microns sediment reduction.
  • Filter replacements are very easy and quick.


  • The filter has a lifespan of only 6 months.

Ubuy / Walmart

#4. Waterdrop 15UA Under Sink Water Filter

      Water filters with the coconut shell fibers are very eco friendly and durable, such as the Waterdrop 15UA Under Sink Water Filter. Each filter has a maximum service life of 24 months or 16,000 gallons., odour and organic contaminants. The Waterdrop Direct Connect Undersink Water Filtration System uses innovative multistage filtration.


  • Ultra-long service life
  • Innovative multistage filtration
  • NSF certified filter
  • Fast flow rate & multiple uses


  • Taste of the water varies. 

Walmart / Waterdrop

#5. APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System

       APEC water filters are America’s finest filters for 20 years, these products are built by a perfect combination of human, power, and state of the art technology. It is also one of the best under sink water filters The APEC water filters last longer twice more than other water filtration systems and need to be replaced once a year. The water faucet comes with 360-degree rotation, smooth disc valve, and lead-free chrome finish.


  • Water filter system built to be long lasting and to provide good quality water at an affordable price.
  • 3 stage filtration and maintains important healthy minerals of the water.
  • No water tank needed.
  • Filters last for over 12 months.


  • Not designed for TDS removal.


#6. Express Water Reverse Osmosis Water Filtration System 

       Reverse osmosis purification helps filter water and makes it healthy for you to drink, not just safe to drink but healthy.The Express Water filtration system consists of 5 Stage RO water purification where every single stage has its own importance. The first stage is the dirt filter, second and third stages are carbon block and granular carbon filters, whereas fourth and fifth stages are the RO membrane and post activated carbon filter respectively.


  • Fastest faucet flow of 0.8GPM.
  • It makes sure you have water when you need it.
  • Eco friendly coconut carbon filters used to give quality and clear natural taste.
  • Reverse osmosis 5 stage filtration .


  • Faucet is a general problem with this filter.


#7. Watts Premier WP-2 LCV 2-Stage Undercounter Water filter system 

       Watts water technologies, Inc. is known for its standard water solutions, the Watts Premier WP-2 LCV 2-Stage undercounter water filter system is NSF certified for the reduction of lead, parasitic cysts and all the VOC’s. It operates at temperatures with maximum of 37.8 degree Celsius and minimum of 4.4 degree Celsius.


  • Removes cyst and VOC which makes water more potable.
  • NSF certified water filtration system.
  • Filters upto 600 gallons of water.
  • Two stage water purification.


  • Not a long lasting filter.


#8. Aquasana AQ-5300.55 3-Stage Under Counter Water Filter System with Brushed Nickel Faucet

       Aquasauna makes sure it purifies water more better than the leading pitcher and reduces contaminants 10 times more efficiently. Ion exchange reduces heavy metals such as lead and mercury, whereas it retains healthy minerals such as calcium, potassium and magnesium. It comes with a stylish nickel faucet that is 100% lead free and has a chrome, brushed nickel finish to match with the other kitchen faucets.


  • Solution to your instant filtered water needs.
  • Half a gallon of water every minute.
  • Filter replacement is a very easy job even for a novice.
  • Most economical filter available in the market with only 10 cents for a gallon of filtered water.


  • The filter is fragile so needs to be used with utmost care.

Aquasana / BestBuy

#9. 3M Aqua-Pure Under Sink Full Flow Water Filter System AP200, 5528901

       The NSF certified water filter system from Aqua Pure provides you with chlorine taste and odour free water. This filter makes your beverages and food taste more good and healthier. It has a universal system design which allows it to be used with either chlorinated water or non chlorinated water. Changing cartridges of the 3M water purifier is as easy as changing bulbs.


  • Compact and space saving design.
  • Built with specially formulated high absorption activated carbon which curbs chlorine taste and odour.
  • 7,571 litre capacity of the water filtration system.
  • Dual action AP217 cartridge included for premium and high performance.


  • Screw of the snaps off very easily.

UBuy / PlumbingHubCanada

#10. 3M Aqua-Pure Under Sink Water Filter AP-DW80/90, for Aqua-Pure AP-DWS1000

         3M Aqua Pure under sink water filter cartridges which help maintain the quality of water at your property. They have innovative sanitary quick change design for easy installation without contacting support centres or without any use of tools. The water filter can be connected to the kitchen sink or on the top of the sink, and it incorporates dual stage carbon block filtration to provide you with clear and clean good tasting water.


  • Two stage cartridge filtration to remove sediment, chlorine taste, odour, cysts, etc.
  • 625 gallons of water purification per year.
  • Provides 2.27lpm flow rate.
  • Carbon filtration technology used to absorb the maximum of adulterated agents from water.


  • Replacement of the filter can be full of efforts. 

UBuy / PlumbingHubCanada


After listing the top 10 best under sink water filters in Canada, we have sorted the top 2 for you, just in case you are confused with what to purchase.  The iSpring RCC7AK 6-Stage Superb Taste High Capacity Under Sink Reverse Osmosis Drinking Water Filter System with Alkaline Remineralization – Natural pH is an expensive variant of under sink water filter and is one of North America’s favourites. The exclusive model remineralises water and purifies water to 0.0001 micron. The last one from top 2 best is the Aquasana AQ-5300.55 3-Stage Under Counter Water Filter System with Brushed Nickel Faucet because it is reasonably priced. The Aquasauna water filter extracts all the unwanted minerals out from the water and maintains the level of healthy minerals such as calcium, potassium and magnesium.

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