350 John Street, Unit #8 Thornhill, Ontario, L3T 5W6

🇨🇦 A Proud Canadian Owned Company

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Whole House WS1 GAC Catalytic Carbon Filter For Chloramine Reduction

4.8


  • Whole House Filtration for Chloramine & Chlorine
  • Activated Carbon Coconut Media for Fresh Water
  • Self-Cleaning with Automatic Backwash
  • Durable Fiberglass-Reinforced Tank
  • Clean Water for Every Tap & Appliance
  • NSF-Certified, 30+ Years of Expertise

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Free shipping

On all orders

100% Risk free

30 days free trial

5 Year Warranty

On all orders

Reviews

Hear What Customer Have to Say

M.B

Marissa Bretton

Toronto, Canada

5.0

E.C

Eric Chan

Toronto, Canada

5.0

A.W

Andrea Webster

Toronto, Canada

5.0

L.S

Luk Steve

Toronto, Canada

5.0

L.C

Loreto Cristini

Toronto, Canada

5.0

M.J

Kumiko Imai

Toronto, Canada

5.0

Trusted by Leading Brands & Institutions!

Key Features of Our Whole House WS1 GAC Catalytic Carbon Filter 

Contaminant Removal

Our whole house WS1 GAC catalytic filter effectively removes chlorine, unpleasant taste and odor, VOCs, pesticides, herbicides, and other harmful chemicals, including chloramine.

Durable & Long-Lasting

Our product is manufactured with high-quality materials and built with a robust design. It ensures long-lasting performance with little to no maintenance.

Easy Installation

It provides clean, refreshing, and filtered water to all fixtures throughout your home with easy installation and maintenance for a hassle-free experience.

Excellent Add-On to Restore Essential Minerals.

Reverse osmosis systems can strip healthy minerals from your water.

But you can reintroduce vital minerals, such as calcium, magnesium, and potassium, back into your filtered water to enjoy pure, healthy, and alkaline water anytime you want by adding one filter to restore essential minerals.

Benefits of Alkaline Water

Your body tends to absorb alkaline water more readily, which promotes optimal hydration. Alkaline water helps neutralize excess acidity in your body, which supports overall health and well-being. Above all, alkaline water offers antioxidant properties that help protect your cells from damage.

Core Product Features of the Whole House WSI GAC Catalytic Carbon Filter

  • Our whole house filter utilizes the power of activated carbon coconut media for effective chlorine taste and odor removal while reducing the traces of chloramine.
  • It features a patented fiber-glass reinforced tank with a sturdy design that ensures long-lasting filter performance and reliability for your home needs.
  • The automatic backwash function and water-efficient control valve allows easy maintenance and consistent water flow, making clean water easily accessible—completely hassle-free
  • Install the WS1 catalytic carbon filter directly on your main water line for a consistent supply of clean, filtered water to every faucet, shower, and appliance throughout your entire home.

Resin Tank Size

8″ x 44″

Gravel Under Bed

0.2 cu ft

Media Type

1.0 cu ft of Activated Carbon Coconut

Media Life

Approx. 3-4 Years

Distributor Pilot

1″

Maximum Operating Temperature

100°F

Height

53″

Max. Diameter

8″

Approximate Weight

40 lbs.

Our Vigorous 5-Stage Filtration Delivers The Purest Water Possible.

The innovative tankless RO water filtration system features multistage filtration, suitable for global water.
With high-quality and precision filter elements, it removes harmful pollutants, including bacteria, viruses, and heavy metals.
The 5-stage filtration process ensures the quality of your water is 99% pure and pristine.

Pre-Filter

Pre-Filter

Removes larger particles, such as rust, silt, and dirt to prevent clogging and improve the efficiency of your system

Central Purifier

Central Purifier

Eliminates contaminants as tiny as 0.01 microns, ensuring your water is free from harmful bacteria, viruses, and other impurities

Central Water Softener

Central Water Softener

Removes scale buildup; calcium and magnesium ions, and improves the appearance of your home appliances. Also, improves your skin and hair texture

Under Sink Water Filter

Under Sink Water Filter

Enhances the taste and quality of your drinking water and makes it perfect for beverages and cooking purposes

Dispenser

Dispenser

Delivers instant hot water for your cup of coffee or tea. Simply press a button and you’re good to go!

Tankless Reverse Osmosis System Vs Tank—Which Is Better?

If you’re planning to switch to a Reverse Osmosis System, one of the major decisions is whether to go for a traditional tank-based system or a tankless systems. 


Tank-based and modern tankless systems have their own pros and cons, depending on your needs.

Here’s how to choose the right system for your home.

Product Size

459×160×443mm

Power

120W

Faucet

with smart water faucet(can show the TDS value, filter life)

Power Supply

100-240v~50/60Hz

Feed Water Source

Municipal tap water

Pure water flow

800GPD(2.23L/min)

Working Pressure

0.1-0.4Mpa(14.5-58psi)

Inlet/Outlet size

1/4″

Flush Method

Auto flush

Filtration Type

PPC+RO+CPF(C+PP),(alkaline ilter or mineral water filter)

Filtration Accuracy

0.0001μm

App-Controlled

Yes

Type

Under-Sink

Pure water flow

800GPD(2.1L/min)

Water temperature

5℃~38℃

Control Your Water Quality with Smart Faucet

Get real-time information about the quality of your water with our smart faucet equipped with TDS monitoring technology.
With this, you can also:

  • Keep a close eye on your water’s purity and take immediate action if TDS levels rise
  • Get a sense of security and reassurance that your quality of water is maintained
  • Detect early problems with your system or water source
  • Make informed decisions about when to use filtered water for drinking, cooking, or other purposes

General Contaminants

Chemical Contaminants

Advanced Chemical Contaminants

Volatile Organic Compounds (VOCs):

Dirt

2,4-D

Dichloroacetonitrile

Tetrachloroethylene

Rust

Dibromochloroproane (DBCP)

Trichloroacetonitrile

Toluene

Suspended Particles

o-dichlorobenzene

Halo ketones (HK)

1,2,4-trichlorobenzene

PFAS

1,2-dichloroethane

1,1-dichloro-2-propanone

1,1,1-trichloroethane

Chlorine

1,1-dichloroethylene

1,1,1-trichloro-2-propanone

1,1,2-trichloroethane

Chloramine

cis-1,2-dichloroethylene

Heptachlor (H-34, Heptox)

Trichloroethylene

Lead

trans-1,2-dichloroethylene

Heptachlor epoxide

Trihalomethanes

Aluminium

1,2-dichloro propane

Hexachlorobutadiene

Chloroform

Alachlor

cis-1,3-dichloropropylenedinosed

Hexachlorocyclopentadiene

Bromoform

Atrazine

Endrin

Lindane

Bromodichloromethane

Benzene

Ethylbenzene

Methoxychlor

Chlorodibromomethane

Carbofuran

Ethylene dibromide (EDB)

Pentachlorophenol

Xylenes

Carbon Tetrachloride

Haloacetonitriles (HAN)

Simazine

2,4,5-TP (silvex)

Chlorobenzene

Bromochloroacetonitrile

Styrene

Tribromoacetic acid

Chloropicrin

Dibromoacetonitrile

1,1,2,2-tetrachloroethane

1,2-dichloropropane

The filter cartridge is tested and certified by NSF international standards against NSF/ANSI standard 42 for material safety requirements only

The filter cartridge is tested and certified by WQA against
NSF/ANSI standard 42 for
material safety requirements only

The filter cartridge is tested and
certified by the Water Quality
Association to WQA/ASPE/ANSI
S-803 for sustainability

Why Choose Watermart? 

30 Years of Pure Excellence

30 Years of Expertise

Watermart has been in the business for over 30 years with a proven track record of providing effective and reliable water solutions in Toronto.

Customer Satisfaction

From initial consultation to ongoing support and maintenance, our team of water specialists is happy to answer your concerns and provide valuable guidance for a satisfactory experience.

Advanced Certification

Our products are NSF-certified to meet and exceed industry standards of performance and safety, giving you the confidence that you’re investing in a system you can truly trust.

Upgrade to WaterMart Water Filters Today!

Buy a water test kit

Reviews

Featuring Our New tankless reverse osmosis water filter system

Pure Water, Pure Peace of Mind…

tankless reverse osmosis
Your Only Water Filtration Solution

Your Only Water Filtration Solution

Our Green 2:1 tankless RO water filter system is more than just a water filter; it’s a commitment to your health and overall physical and mental well-being. With its advanced reverse osmosis technology, our tankless RO water filter system delivers 99% water purification, surpassing all other options on the market.

Save Money, Save the Planet

Save Money, Save the Planet

Our advanced system features a 2:1 low drain ratio, meaning you’ll produce significantly less wastewater than traditional RO systems. This cannot only save an average family of 4 up to $200 per year in water bills but also contribute to a healthier environment.

800 GPD Flow Rate

800 GPD Flow Rate—16x More than Traditional Reverse Osmosis Systems

Imagine the convenience of our tankless RO system that delivers an impressive flow rate of 800 gallons per day (GPD); a remarkable 16 times faster than traditional RO systems. This means you can enjoy a constant supply of clean, filtered water without waiting.

Excellent Add-On to Restore Essential Minerals.

Reverse osmosis systems

Reverse osmosis systems can strip healthy minerals from your water.

But you can reintroduce vital minerals, such as calcium, magnesium, and potassium, back into your filtered water to enjoy pure, healthy, and alkaline water anytime you want by adding one filter to restore essential minerals.

Alkaline Water

Benefits of Alkaline Water

Your body tends to absorb alkaline water more readily, which promotes optimal hydration. Alkaline water helps neutralize excess acidity in your body, which supports overall health and well-being. Above all, alkaline water offers antioxidant properties that help protect your cells from damage.

Core Product Features

  • This product features a strontium-rich-post-carbon filter that provides enhanced filtration and pure, alkaline water that is rich in essential minerals.
  • Smart faucet technology to monitor water quality and filter life in real-time
  • A generous flow rate of 800 gallons per day of pure, clean, and filtered water
  • App-controlled convenience to manage the system settings and monitor performance through our user-friendly app
Product Size459×160×443mm
Power120W
Faucetwith smart water faucet(can show the TDS
value, filter life)
Power Supply100-240v~50/60Hz
Feed Water SourceMunicipal tap water
Pure water flow800GPD(2.23L/min)
Working Pressure0.1-0.4Mpa(14.5-58psi)
Inlet/Outlet size1/4″
Flush MethodAuto flush
Filtration TypePPC+RO+CPF(C+PP),(alkaline ilter or mineral water filter)
Filtration Accuracy0.0001μm
App-ControlledYes
TypeUnder-Sink
Pure water flow800GPD(2.1L/min)
Water temperature5℃~38℃

Our Vigorous 5-stage tankless RO water filtration system Delivers The Purest Water Possible

The innovative tankless RO water filtration system features multistage filtration, suitable for global water. With high-quality and precision filter elements, it removes harmful pollutants, including bacteria, viruses, and heavy metals. The 5-stage filtration process ensures the quality of your water is 99% pure and pristine.

tankless RO water filtration system
Pre-Filter

Pre-Filter

Removes larger particles, such as rust, silt, and dirt to prevent clogging and improve the efficiency of your system

Central Purifier

Central Purifier

Eliminates contaminants as tiny as 0.01 microns, ensuring your water is free from harmful bacteria, viruses, and other impurities

Central Water Softener

Central Water Softener

Removes scale buildup; calcium and magnesium ions, and improves the appearance of your home appliances. Also, improves your skin and hair texture.

Under Sink Water Filter

Under Sink Water Filter

Removes larger particles, such as rust, silt, and dirt to prevent clogging and improve the efficiency of your system

Dispenser

Dispenser

Delivers instant hot water for your cup of coffee or tea. Simply press a button and you’re good to go!

Tankless Reverse Osmosis System Vs Tank—Which Is Better?

If you’re planning to switch to a Reverse Osmosis System, one of the major decisions is whether to go for a traditional tank-based system or a tankless systems. 

Tank-based and modern tankless systems have their own pros and cons, depending on your needs.

Here’s how to choose the right system for your home.

Space Saving Design
Tankless RO SystemIt is a compact and sleek design without a storage tank. Ideal for homes with limited space.

Tank-based RO System

It requires a storage tank and takes up significant space under your sink
Water Purity
Tankless RO System
Freshly filtered water is delivered on demand with minimal risk of contamination.

Tank-based RO System

If not maintained timely, the water stored in tanks may risk bacterial growth. 
Filtration Speed

Tankless RO System
An advanced filtration system allows for faster filtration speed and no reliance on tanks.

Tank-based RO System

It heavily relies on filling a tank over time. Therefore, it offers slower filtration speed.
Installation & Maintenance

Tankless RO System
Easy installation with low maintenance 

Tank-based RO System
Complex installation and requires regular cleaning of the tank
Cost-efficiency
Tankless RO System
Higher initial investment with long-term cost savings

Tank-based RO System
Affordable with low initial investment
Water Waste

Tankless RO System
Water-efficient and eco-friendly option

Tank-based RO System
Wastes more water during filtration

Control Your Water Quality with our Smart Reverse Osmosis System faucet

Get real-time information about the quality of your water with our smart faucet equipped with TDS monitoring technology.
With this, you can also:

Keep a close eye on your water’s purity and take immediate action if TDS levels rise

Get a sense of security and reassurance that your quality of water is maintained

Detect early problems with your system or water source

Make informed decisions about when to use filtered water for drinking, cooking, or other purposes.

Smart Faucet
General ContaminantsChemical ContaminantsAdvanced Chemical ContaminantsVolatile Organic Compounds (VOCs):
Dirt2,4-DDichloroacetonitrileTetrachloroethylene
Rust Dibromochloroproane (DBCP)TrichloroacetonitrileToluene
Suspended Particleso-dichlorobenzeneHaloketones (HK)1,2,4-trichlorobenzene
PFAS1,2-dichloroethane1,1-dichloro-2-propanone1,1,1-trichloroethane
Chlorine1,1-dichloroethylene1,1,1-trichloro-2-propanone1,1,2-trichloroethane
Chloraminecis-1,2-dichloroethyleneHeptachlor (H-34, Heptox)Trichloroethylene
Leadtrans-1,2-dichloroethyleneHeptachlor epoxideTrihalomethanes
Aluminium1,2-dichloropropaneHexachlorobutadieneChloroform
Alachlorcis-1,3-dichloropropylenedinosedbHexachlorocyclopentadieneBromoform
AtrazineEndrinLindaneBromodichloromethane
BenzeneEthylbenzeneMethoxychlorChlorodibromomethane
CarbofuranEthylene dibromide (EDB)PentachlorophenolXylenes
Carbon TetrachlorideHaloacetonitriles (HAN)Simazine2,4,5-TP (silvex)
ChlorobenzeneBromochloroacetonitrileStyreneTribromoacetic acid
ChloropicrinDibromoacetonitrile1,1,2,2-tetrachloroethane
1,2-dichloropropane

The filter cartridge is tested and certified by NSF international standards against NSF/ANSI standard 42 for material safety requirements only

The filter cartridge is tested and certified by WQA against
NSF/ANSI standard 42 for
material safety requirements only

The filter cartridge is tested and
certified by the Water Quality
Association to WQA/ASPE/ANSI
S-803 for sustainability

Why Choose Watermart? 

Our advanced tankless reverse osmosis system is certified against NSF/ANSI 42 for material safety requirements and NSF/ANSI 58 for TDS reduction. The methoxychlor and lindane reduction rate of Watermart’s reverse osmosis system is up to 99%.

tankless reverse osmosis
30 Years of Pure Excellence

30 Years of Pure Excellence

For over three decades, Watermart has been a trusted name in water filtration and purification. Our commitment to quality and customer satisfaction has earned us a reputation as a leading industry expert.

Certified Performance

Third-Party Certified

We maintain the highest industry standards, ensuring that our products meet superior quality and safety requirements. Our certifications provide you with peace of mind and confidence in your purchase.

Serving Over 10,000 Satisfied Customers

Join the thousands of satisfied customers who have experienced the benefits of Watermart’s innovative products and exceptional service over 30 years.

Sleep Soundly & Live Happily with Noise-Free Water Filtration

Unlike other tankless RO systems, our tankless system offers remarkably low noise levels, typically below 50 decibels for a peaceful environment, better sleep, and reduced stress, creating a more peaceful and relaxing atmosphere.

FAQs

Check out the common questions we get below.

Both systems feature advanced water filtration. However, the whole house WSI GAC Carbon filter only reduces the foul taste and odor of chlorine from your water, while the GAC Catalytic Carbon filter is effective in removing chloramine from your water.

The activated carbon coconut media ideally lasts around 3 years, depending on your water usage and household size. However, regular maintenance helps improve the lifespan of your system.

Yes, it is engineered to remove chlorine, odors, and chloramines from municipal and well water sources. However, if you have other water concerns, such as high levels of iron or hardness, you might need additional filtration options.

Yes, this system is fairly easy to install. However, if you’re someone with little to no plumbing knowledge, we recommend installing it with a professional water specialist to ensure proper setup.

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