10 Best Under The Sink Water Filter System in Canada

Last updated on 2025-05-15

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Waterdrop TSU 0.01μm Ultra-Filtration Under Sink Water Filter System, 3-Stage High Capacity, USA Tech, Smart Panel, No Waste Water, 2 Years Lifetime

6% OffFree Shipping

Why We Love It

Highly effective at pollutant removal.
Prevents water leakage efficiently.
Smart system and easy installation.

Main Highlights

0.01m Ultra Filtration membrane This 0.01 micron Ultra Filtration membrane can reduce most of the harmful substances larger than 0.01micron. This system can effectively reduce chlorine, taste and odor; reduce fluoride, heavy metals and much more. Besides, this system is not designed for TDS removal, It will retain minerals such as potassium, calcium, sodium, and magnesium, which are beneficial for your health.
Integrated waterway The system adopts the cutting edge integrated waterway to prevent water leakage, which allows you to replace the filters without cutting off the water supply, deliver you a safe and secured water purification experience.
24 Months filter life The advanced ultrafiltration membrane design extended service life to 24 months, higher than most of the filter products on the market, which reduces the frequency of future filter replacement and saves future maintenance costs. The system delivers a more effective filtration than normal water filters, giving you pure and healthy drinking water all the time. In addition, the PP filter is 6 months and the CT filter is 12 months.
Smart indicating system Smart indicating system that allows you to check water quality and working mode with a glance. The electronic indicators on the front panel will notify you when to replace the filters by changing the color, ensuring safe, clean, and healthy purified water all day long!
Easy Installation Waterdrop Ultra Filtration system is an innovative, all-in-one intelligent water purification system. The system comes with a stainless steel faucet, a 3/8 inch inlet hose, a 1/4 inch outlet hose, a 3/8 inch -1/2 inch feed water adapter, and other necessary accessories. In just a few minutes, Waterdrop Ultra Filtration system can be installed completely, and in just three seconds, the filter can be changed with one single twist-pull. Installation is that easy!

Waterdrop TSA 8 Layer Under Sink Water Filter System, Under Sink Water Filtration System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, NSF/ANSI 42 Certified Element, USA Tech

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Why We Love It

Improves taste and purity.
Highly durable and leak-proof.
Easy to install quickly.

Main Highlights

𝐌𝐨𝐫𝐞 𝐟𝐢𝐥𝐭𝐞𝐫𝐬, 𝐛𝐞𝐭𝐭𝐞𝐫 𝐭𝐚𝐬𝐭𝐞: This under sink water filter system comes with 3 filters and can realize 8-stage deep filtration to reduce PFAS, PFOA/PFOS, residual chlorine, fluorides, heavy metals, silt, rust, cyst, etc. Its KDF materials can effectively reduce heavy metals. Its resin reduces fluorides. The CT filter has passed WQA certification to reduce residual chlorine and improve taste, thereby ensuring every drop is pure and healthy.
𝐍𝐨 𝐥𝐞𝐚𝐤𝐢𝐧𝐠 𝐨𝐫 𝐜𝐫𝐚𝐜𝐤𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐡𝐢𝐠𝐡𝐥𝐲 𝐩𝐫𝐞𝐜𝐢𝐬𝐞𝐝 𝐭𝐞𝐜𝐡𝐧𝐢𝐪𝐮𝐞: The under sink water filter adopts strong materials with an upgraded design. In addition, the age-resistant and freeze-resistant materials make the system twice thicker. The under counter water filter system for kitchen has also passed 400 psi burst pressure, 100,000+ pulse tests at 150 psi, and static tests at 300 psi. These tests prove that the durable integral design clears up worries about cracking cases and leaking issue.
𝐋𝐢𝐟𝐞𝐬𝐩𝐚𝐧 𝐨𝐟 𝐮𝐩 𝐭𝐨 𝟏𝟖 𝐦𝐨𝐧𝐭𝐡𝐬: The three under sink water filters have lifespans of 6 months, 8-12 months, and 12-18 months, respectively.
𝟑𝐦𝐢𝐧 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧, 𝟑𝐬 𝐫𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭: This under sink water filter system works perfectly with 3/8” and 1/2” cold water tubes. The under sink water filtration system is a simple DIY. With innovative push-to-connect fittings, the installation of the under sink water filter system takes less than 3 minutes. In addition, the twist-and-lock design lets you replace each filter in just 3 seconds.
𝐆𝐨𝐨𝐝 𝐬𝐞𝐫𝐯𝐢𝐜𝐞：With a stale water flow, this under sink water filter provides all-round protection for drinking or usage. The carbon block is made from natural coconut shells. Please confirm whether you are allergic to it. ⚡𝐍𝐨𝐭𝐞: This under sink water filtation system can retain minerals,but will NOT reduce 𝐓𝐨𝐭𝐚𝐥 𝐃𝐢𝐬𝐬𝐨𝐥𝐯𝐞𝐝 𝐒𝐨𝐥𝐢𝐝𝐬 (𝐓𝐃𝐒).

iSpring RCC7AK, NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation

Why We Love It

Removes 99% harmful contaminants.
Restores natural mineral balance.
Easy do-it-yourself installation.

Main Highlights

PATENTED DESIGN – The top-mounted fastener allows for easy countertop installation entirely from above, eliminating the hassle of tightening the nut from underneath the sink.
MINERAL BOOST – The patent-pending natural mineral AK stage delivers spring water with a balanced, healthy pH and multiple essential minerals.
SEE WHAT’S CAUGHT – The transparent first-stage filter housing makes it easy to monitor contaminant buildup, ensuring timely filter changes.
NSF 58 CERTIFIED RO SYSTEM – Unlike other brands that lack NSF certification or full system certification, our RCC7AK is certified to NSF/ANSI 58 and 372 standards for the entire water filtration system.
EFFECTIVE FILTRATION – Reduces TDS (93-98%), PFAS (96-99%), Chlorine (95-99%), Asbestos (>99.7%), Barium (>98.4%), Cadmium (>98.8%), Chromium (>99.2%), Copper (>97.8%), Fluoride (>97.4%), Lead (>98.9%), Selenium (>99.0%), and over 1,000 other contaminants.
EASY INSTALLATION – The RO water system features a DIY-friendly design with quick-fitting connections, a clear manual, and step-by-step videos for a hassle-free setup.
TRUSTWORTHY SUPPORT – America’s favorite RO brand, backed by lifetime technical support in Atlanta, GA, ensuring expert assistance whenever you need it.
CONVENIENT REPLACEMENT FILTERS - Easy access to replacement filter sets: F4AK (6-Month), F9K (1-Year), F19K75 (2-Year), and F28K75 (3-Year).

Express Water RO5DX Reverse Osmosis Filtration NSF Certified 5 Stage RO System with Faucet and Tank – Under Sink Water Plus 4 Filters – 50 GPD, 14 x 15 x 5, White

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Why We Love It

Reduces 99.99% contaminants effectively.
Easy DIY installation process.
Automatic leak detection system.

Main Highlights

Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system reducing up to 99.99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, and more.
Water Purification System: Drink the healthiest water on Earth. All our water filters are specially engineered to work together, producing the safest and best tasting water you'll ever drink
Under Sink Water Filter: Don't waste money on professional installation. Express Water's quick and easy-to-understand design means you can install and understand everything about your new water filtration system
Under Sink Water Filter System: No need to mess with refilling or activating your water filter, Express Water's water filtration systems automatically fill your water tank with high quality drinking water
Leak Detection: Each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture
Customizable RO Water Filter System: Express Water home water filtration systems are fully upgradable and customizable with quick connecting fittings. Try additional filtration attachments including UV Water Filter, Alkaline Water Filter, Deionization Water Filter, and more
On Demand Support: Support from experts who can answer any of your questions about your new water filter
Help Has Arrived - Support from experts who can answer any of your questions about your home's water

Frizzlife 3-Stage Under Sink Water Filter System SK99-NEW, Direct Connect, Certified 3-Stage 0.5 Micron Carbon Block, Remove 99.99% Lead, Chlorine, Chloramine, Fluoride, Odor & Bad Taste- Quick Change

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Why We Love It

Fully certified for safety.
Fast water flow rate.
Cost-effective, eco-friendly choice.

Main Highlights

【Fully Certificated System】Frizzlife SK99 under sink water filter system is rigorously tested and certified by IAMPO against NSF/ANSI 42&53 for Material Safety, Structure Integrity, Flow rate, and Filtration Effectiveness on eliminating but not restrict to chlorine, particle class, and lead.
【Premium Filtration Performance (0.5 Micron)】Adopting 0.5 micron filtration accuracy, almost 10X higher than other brands, the compounded filter cartridges of SK99 under counter water filter consist of 8 layers of filtration materials. Certified to reduce Lead, Chlorine, Taste & Odor and Particulates. Leave in all the beneficial minerals.
【Fast Water Flow & DIY Installation】The water filter for sink features with strong flow, it can fill up a cup of water in 3 secs. The installation takes less than 15 minutes, no plumber required. With TWIST-IN design, the replacement of the filters is super easy even for elders. The SK99 under sink filter system can simultaneously serve both of your sink and refrigerator by using ice maker kit IMC-2 (Asin#B07RBMLR26). The claim of capacity is verified through manufacture internal testing only.
【Money Saver & Green Choice】Frizzlife SK99 under sink water filter systems are designed with the concept of green, convenience and cost-effective. When replacing the filters, You don’t have to throw away the whole plastic housing but only the core filters inside. Choose Frizzlife to save more waste to the earth, and enjoy the great-tasting water in a more economic and green way! Search replacement filters: M3001, M3002,M3003, and the filter set M3005
【Superior Design with 24/7 USA Tech Support】The complete water filtration system of NEW SK99 has been upgraded, featured with stronger cases, bottom caps, integrated water board, etc. A pressure regulator is added, serving as double insurance. No more leakage or crack concerns! The compact design of the water filter for sink can fit your cabinet under the sink.

Waterdrop 15UB Under Sink Water Filter System, Reduces Lead, Chlorine, Bad Taste & Odor, Under Counter Water Filter with Dedicated Brushed Nickel Faucet, NSF/ANSI 42 Certified, 16K Gallons, USA Tech

20% OffFree Shipping

Why We Love It

Ultra-long service life.
Innovative multistage filtration.
Easy installation process.

Main Highlights

Ultra-long service life: When used with municipal water, each undersink water filter has a maximum service life of 24 months or 16,000 gallons.[1]
Innovative Multistage Filtration: The Waterdrop Under Sink Water Filtration System uses innovative multistage filtration. And it can effectively reduces chlorine, heavy metals, chemical iṁpurity, sediment and other large particles.[2] Use activated carbon block and other advanced filter media ensure efficient and safe filtration. Enjoy healthy and pure water straight from your tap – no need to buy bottled water anymore!
WQA Certified Filter: Made from premium BPA-free and lead-free materials, the under sink water filter is certified by WQA against NSF/ANSI 372 Standard, ensuring reliable use from inside to outside. Certified by WQA against NSF/ANSI 42 Standard, the water filter can effectively reduce chlorine, taste and odor. Tested by third party laboratory against NSF/ANSI 53 standard it can reduce lead. To look over the 42&372 certification, please search "WD-15UB" on WQA official website.
Premium Dedicated Faucet: The under sink water filter system comes with a lead-free brushed stainless steel faucet. For separate drinking faucet you already have, WD-15UC system ( Search ASIN: B085G9T9TB ) would be a better choice.
Easy Installation: This under sink water filter system should be connected only to a cold water supply. With innovative push-to-connect fittings, installation takes less than 3 minutes. The twist-and-lock design helps you replace the filter in 3 seconds without any tools. The under sink water filter system comes with a feed water adapter that can connect to the tubing. The 3/8"–1/2" convertor fitting can connect this system to 1/2" or 3/8" cold water lines and faucets.

Waterdrop 17UA 3 Years Under Sink Water Filter System-Reduces Lead, Chlorine, Bad Taste & Odor-Under Counter Water Filter Direct Connect to Kitchen Faucet-NSF/ANSI 42 Certified-24000 Gallons-USA Tech

26% OffFree Shipping

Why We Love It

Easy three-minute installation process.
Certified safe BPA-free materials.
Effectively reduces harmful contaminants.

Main Highlights

【Compatibility】Suitable for faucets with 1/2" or 3/8" FEMALE NPT thread. If a female threaded connector is needed to connect to your faucet, please contact us BEFORE purchase.
Ultra-Long Service Life: When used with municipal water, each under sink water filter has a maximum service life of 36 months or 24,000 gallons.
Efficient Filtration: The Waterdrop Direct Connect Under Sink Water Filter System is tested by IAPMO against NSF/ANSI 42 for reduction of chlorine, taste&odor. Tested by KC authorative organization, it can effectively reduce VOC(chloroform), benzene, chlorobenzene, chloropicrin and styrene. It can effectively remove sediment, rust and other large particles. Tested by third party laboratory against NSF/ANSI 53 standard it can reduce lead.Besides, it can reduce PFAS, PFOA/PFOS.
Solve Clogging Problem: By upgrading the filtration area, our filter now provides a 20X increase in dirt adhesion area, enhancing filtration capability while minimizing the risk of clogging.
IAPMO Certified Safe Material: Made from premium BPA-free and lead-free materials, the under sink water filtration system is certified by IAPMO against NSF/ANSI 372 Standard, ensuring reliable use from the inside out. To look over the 42&372 certification, please search "WD-17UA" on IAPMO official website.
Easy Installation: The system should be connected only to a cold water supply. With innovative push-to-connect fittings, the entire installation process takes less than 3 minutes. The twist-and-lock design ensures that you can replace the filter in 3 seconds. The system includes a 3/8” hose with a direct connection that adapts to standard 3/8’’ feed water valves under US sinks. The 3/8”–1/2”convertor fitting helps you connect the system to both 1/2” and 3/8” cold water lines and faucets.
Fast Flow Rate & Multiple Uses: The fast and stable water supply provides pure water that tastes like spring water. The tested full flow rate is 0.75 gpm at 60 psi. Developed for household and commercial use, the Under Sink Water Filter System can be installed in your kitchen, bathroom, RV, or office to meet your daily water needs. NOTE: At least 21.5" of vertical under sink space is required to install this filter!
⭐TDS is not a professional way to measure the water quality. Essential Minerals, Calcium, Potassium, Sodium, Magnesium...These essential minerals are dissolved solids, PPM will not be dropping if you test with a TDS meter. Waterdrop under sink water filtration system is keeping all those minerals, but removes elements that are harmful to your body.⭐Note: The activated carbon is made from natural coconut shells. Please confirm whether you are allergic to it.

Frizzlife Under Sink Water Filter System-NSF/ANSI 53&42 Certified High Capacity Direct Connect Under Counter Drinking Water Filtration System-0.5 Micron Removes 99.99% Lead, Chlorine, Bad Taste & Odor

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Why We Love It

Removes 99.99% of contaminants.
Super easy installation process.
Quick, tool-free filter replacement.

Main Highlights

✔Two-stage Advanced Water Purifier With 0.5 Micron: The Frizzlife MK99 Water Filtration System includes a TWO-STAGE High precise compound filter, which has a unique technology that removes over 99.99% of contaminants while leaving in all essential minerals. Reduces Lead, Heavy Metals, Chlorine, Chromium 6, Mercury, Rust, Volatile Organic Compounds, Carcinogens, and other contaminants, such as Turbidity, Odors and Bad Tastes. Enjoy pure and healthy water from the tap. No more bottled water!
✔Fits both 1/2" and 3/8" cold water line: Super Easy Installation. Come with 3/8" Directly Connect hoses that fit standard 3/8" feed water valves under US kitchen sinks. The Inline water filter system also comes with a 3/8" to 1/2" converter fittings that allow the system to directly install to the existing both 1/2" and 3/8" cold water line and faucet under your sink. Took less than 3 minutes and No Plumbing Required! New installation video available.
✔Best Auto Shut Off Design: Utilizing quick change twist-in installation design makes it take less than 3 minutes for you to install the system or doing a filter replacement. Provides quick twist connection for easy, tool-free, no mess filter replacement. The filter cap is designed with a BUILT-IN shut off valve. You don't even need to shut off the water supply whenever you work on the filter cartridge replacement.
✔High Flow Rate & Multi-Usage: Enjoy tap water as pure and healthy as spring fresh water. Tested Full Flow Rate ＞2.0GPM @40 psi. Good for cooking, washing fruits & veggies, and cleaning dishes without watermarks.
✔Money Saving & Satisfaction: The under counter water filter system contains a core filter cartridge inside the housing, you will only need to replace the core part of the filter cartridge instead of throwing away the whole plastic part, it will save you much money on replacing the cartridge and will do help on the environmental protection. Each cartridge with high capacity can be used for 2 years or 1,600 gallons of water, for better filtration, suggest to replace after 6-8 month.

Waterdrop 15UB-UF 0.01 mu-m Ultra Filtration Under Sink Water Filter System for Bacteria Reduction, 16K Gallons Chlorine Reduction Capacity, with Dedicated Brushed Nickel Faucet, USA Tech

12% OffFree Shipping

Why We Love It

Efficient multistage filtration system.
Easy installation process.
Fast and stable flow.

Main Highlights

Superior Material: With a filtration accuracy of 0.01 μm, the Ultrafiltration membrane filters out most of baçtёria larger than 0.01 μm. Activated carbon block and other advanced filter media ensure efficient and safe filtration. Specially selected premium materials are lead-free. The BPA-free, lead-free material ensures more reliable use from the inside out. The activated carbon is made from natural coconut shells. Please confirm whether you are allergic to it.
Innovative Multistage Filtration: The Waterdrop Direct Connect Under Sink Water Filter System uses innovative multistage filtration. The system effectively reduces chlorine, taste and odor. And it can effectively reduces heavy metals, chemical iṁpurity, sediment and other large particles.[1] Tested by third party laboratory against NSF/ANSI 53 standard it can reduce lead. No need to buy bottled water anymore!
Premium Dedicated Faucet: The under sink water filter system comes with a lead-free brushed stainless steel faucet, providing you with access to clean water throughout the day. For separate drinking faucet you already have, WD-15UC-UF system ( Search ASIN: B085G9TZ4L ) would be a better choice.
Easy Installation: This under sink water filter system should be connected only to a cold water supply. With innovative push-to-connect fittings, installation takes less than 3 minutes. The twist-and-lock design helps you replace the filter in 3 seconds without any tools.
Fast Flow Rate & Multiple Uses: The tested full flow rate of this under sink water filter system is 0.75 gpm at 60 psi. The fast and stable water supply provides pure and fresh water that tastes like spring water. Developed for household and commercial use, Waterdrop Under Sink Water Filter System can be installed in your kitchen, RV, or office to meet your daily water needs. With its exquisite design and small size, it is the best choice for a rented apartment.
Compatibility: The under sink water filter system comes with a feed water adapter that can connect to the tubing. The 3/8’’–1/2’’ convertor fitting can connect this system to 1/2’’ or 3/8’’ cold water lines and faucets.

Frizzlife UDS99 Under Sink Water Filter System, 8-Stage Direct Connect Water Filtration, 0.5 Micron Reduce 99.99% Lead, Chlorine, Heavy Metals, Bad Taste, NSF Certified Elements, Stainless Steel

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Why We Love It

8-stage deep filtration system.
Easy 3-minute installation.
Durable and safe materials.

Main Highlights

【8-Stage Deep Filtration】Frizzlife UDS99 under sink water filter system provides 8-stage deep filtration. The 1st stage adopts high grade PP membrane and activated coconut shell carbon block, which also blended with KDF. The 2nd stage features with 0.5 micron filtration precision, by combining carbon block and lead removal ingredients, it can effectively reduce Lead, Chlorine, Fluoride, Heavy Metals, VOCs, bad taste & odor and other harmful contaminants. The essential minerals are still kept.
【Safe, Durable Materials & Reinforced Construction】Frizzlife UDS99 undersink water filtration system is made from food-grade and lead-free 304 stainless steel. By only using safe and reliable materials, UDS99 sink water filter is designed for healthy and fresh water. The thickened filter housings (1mm) are corrosion-resistant, durable and can be used for years. The whole system has passed 100,000 times water hammer test and 10,000 times pulse tests. No more burst concern.
【3 Mins Install, No Drilling】UDS99 water filter should be directly connected to the main kitchen sink cold water line, no need to drill a hole on the granite. Prefect for renters and for people who can't install a separate dedicated faucet. Fits for both 3/8'' and 1/2'' U.S. standard sinks (3/8" to 1/2" converter fittings included).
【2 Gal/Min Fast Flow & Muti-Usage】Frizzlife UDS99 drinking water filter delivers rapid and stable water flow, which can reach 2 gal. per min @60 psi. You can fill up an 8oz cup of filtered water in less than 2 seconds! So long as you have this under counter water filter system, you can have clean water whenever you need it. With the IMC-2 ice maker kit (B07RBMLR26), it can simultaneously deliver purified water to kitchen sink and refrigerator/ice-maker.
【Last for Long, Quick Replacement】The 1st stage filter can last up to 8 months, and the 2nd stage can last up to 12 months or 8,000 gallons of filtered water (Actual filter life may vary based on your feed water quality and daily water usage). You don’t need to replace the entire stainless steel housings but only the inner core filter cartridges, thus saves up the plastic wastes. Search "DSF01" and "DSF02" for replacement filters.
Note: this under sink water filter system is not designed for TDS reduction, the beneficial minerals are still kept in the filtered water.

8.7

Excellent

We scanned 1319 products

We reviewed these offers relevant to the Under The Sink Water Filter System within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Waterdrop, iSpring, Express Water, FRIZZLIFE, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Under The Sink Water Filter System in the market, we considered we took a deep dive into 6596 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Waterdrop TSU 0.01μm Ultra-Filtration Under Sink Water Filter System, 3-Stage High Capacity, USA Tech, Smart Panel, No Waste Water, 2 Years Lifetime. We love many things about this product by Waterdrop. What sets it apart from the competition is Highly effective at pollutant removal, Prevents water leakage efficiently, Smart system and easy installation.
The best value product for most shoppers and where user satisfaction is continuously the highest is Waterdrop TSA 8 Layer Under Sink Water Filter System, Under Sink Water Filtration System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, NSF/ANSI 42 Certified Element, USA Tech by Waterdrop based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Under The Sink Water Filter System and the best cost-to-value ratio is Waterdrop 17UA 3 Years Under Sink Water Filter System-Reduces Lead, Chlorine, Bad Taste & Odor-Under Counter Water Filter Direct Connect to Kitchen Faucet-NSF/ANSI 42 Certified-24000 Gallons-USA Techat Waterdrop with a 26% discount.
Our list of the best Under The Sink Water Filter System is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Under The Sink Water Filter System in Canada

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We scanned 1319 products

We concluded that: