Reverse osmosis systems are available for different house installation. They are system installed at the point of entry known as the whole house reverse osmosis system, others are installed at the point of use known as under sink reverse osmosis system and others require no installation and are placed on the tabletop or kitchen sink top is known as countertop reverse osmosis system.
In this article, we will discuss the best countertop reverse osmosis system
What is the countertop reverse osmosis system?
THE Countertop RO system does not require installation and drilling so the system is placed on the countertop, tabletop. Also, like under the sink RO system and whole house RO system that has a tank, the countertop RO system is tankless.
It has a Compact design enough to fit your countertop, office desk, night table, and granite
This is the best system for people with a small home, travelers, students, and renters who cannot make a change in their plumbing. You can use countertop RO in the rented apartment, condos, hotel rooms, RV, college dormitories, or when on go.
How does countertop reverse osmosis system work?
Most countertop reverse osmosis system utilizes a 4-stage filtration system. Some come with a pitcher/dispenser where you fill untreated water.
You place the pitcher at the right place and with a touch of the button your unfiltered water pass through the filtration and you have pure water.
Others come with diverter for kitchen faucets that help connect to the most standard faucet without the use of no tool.
Our top pick
- KFLOW Countertop RO Water Filter (KFL-ROPOT-180)
- Frizzlife Countertop RO water filter
- Reverse osmosis revolution Countertop Portable
- APEC Water Systems RO-CTOP Portable Countertop Reverse Osmosis Water Filter System
- APEC Water Systems FILTER-SET-CTOP (Stage 1-2)
- Express Water Countertop Reverse Osmosis Water Filtration System
- OnliPure Zero Installation Purifier Reverse Osmosis Countertop Water Filter
- AQUA TRU Countertop Water Filtration Purification System
- SimPure Y5 Instant Heat Reverse Osmosis Water Filtration System
Countertop reverse osmosis system reviews
KFLOW is a 4-stage countertop reverse osmosis water filter system. The 4-stage include
Stage 1: Polypropylene Filter-it help remove dirt, corrosion, sediment, sand, and any other physical particles. It’s working pressure 0.1 – 0.4Mpa and temperature 4 – 40°C. Filtration precision is 5μm
Stage 2: Coconut Carbon Block Filter (CTO)-it removes any additional chlorine and organic matters. Its working pressure 0.1 – 0.4Mpa and temperature 4 – 40°C. Filtration precision is 0.5μm
Stage 3: Reverse Osmosis Membrane (R.O. Membrane). The membrane is certified by CE. It helps remove bacterial, viruses, heavy metals, harmful microorganisms, antibiotics, and any other harmful substances. Filtration precision is 0.0001μm
Stage 4: Rear Coconut Carbon Block Filter (CCF). Improve the taste of the pure water to light sweet. Its working pressure 0.1 – 0.4Mpa and temperature 4 – 40°C
Reverse osmosis filter can be used for 2 years, PPF filter can be used for 1 year, Front and rear carbon block filter can be used for 1 year
This system adopts recycling multi-filtration technology meaning the water left after filtering is not hastily classified as wastewater, but will be recycled for the next round filtration with adding water. It helps save water wastage compared with the convectional RO system.
KFLOW RO system features an electronic filter indicator that helps you remind you of the remaining life of the filter and notify you when the filter needs to be replaced.
When it comes to filter change no tool is required, its Spiraled filter system makes the filter replacement easy thing.
This water filter is certified by European Conformity and All materials of this countertop water filter are food-grade-level standards.
Kflow replacement filter and membrane
KFLOW Water Filter 1st Stage Replacement for KFLOW Countertop Water Filter KFL-ROPOT-180
KFLOW Water Filter Replacement, 2nd Stage – Coconut Carbon Block Filter (Front CTO) for KFLOW Countertop Water Filter KFL-ROPOT-180
KFLOW RO Water Filter Replacement, 3rd Stage – Reverse Osmosis Membrane (R.O. Membrane)
KFLOW Water Filter Replacement, 4th Stage – Rear Coconut Carbon Block Filter (Rear CCF) for KFLOW Countertop Water Filter KFL-ROPOT-180
Frizzlife Countertop RO water filter is a 4-stage system. The stages include:
Stage 1 High-grade sediment filter that help blocks fine debris and reduces particles such as sand, silt, and rust
Stage 2: High-grade coconut carbon that help reduces chlorine and chloramine
Stage 3: 0.0001-micron reverse osmosis membrane that gets rid of 1000+ contaminants, including lead, heavy metals, fluoride, mercury, VOCs, chloramine, arsenic, and more
Stage 4 – Granular active carbon filter with high-grade acid washed coconut shell carbon that helps reduce the organic compound in water, unpleasant taste, odor and polishes the flavor.
This system is backed by advanced drain water recycle technology, pure water to drain water ratio can reach to 5:1, therefore, it saves water waste up to 1500% compared to conventional RO systems
Frizzlife Reverse Osmosis Water Filtration System requires no installation and with twist-in filter system makes the filter replacement a breeze
It features a built-in smart screen that plays a role as a reliable and intelligent indicator. It tells the remaining lifespan of each filter cartridge, the real-time in and out TDS. The intelligent indicator changes color to red when it is time to refill your filling tank
Frizzlife Replacement filter and membrane
Frizzlife W5002 Water Filter Replacement Cartridge For WA99 RO Reverse Osmosis System – 1st Year Replacement Cartridge Set (2 Pack)
Frizzlife W5002 Water Filter Replacement Cartridge includes 5-micron polypropylene sediment filter and carbon block filter with high-grade coconut carbon.
5-micron polypropylene sediment filter reduces particles such as rust, dirt, sand, silt, and insoluble impurities. It lasts 1500L or 6 months.
Carbon block filter with high-grade coconut carbon reduces chlorine, organic chemicals, unpleasant taste, odor, cloudiness, and color. The filter lasts after 1500L or 6 months.
These are only two filter cartridges you need to change in the first year of use since the RO membrane is changed once in a year.
Replacement of the filter requires no tool the system utilizes a twist-in filter system making replacing easier.
FRIZZLIFE W5006 Water Filter Replacement Cartridge For WA99 RO Reverse Osmosis System – From Second Year Replacement Cartridge Set (6 Pack)
FRIZZLIFE W5006 Water Filter Replacement Cartridge includes 6 Cartridges in Total: 2 Polypropylene Sediment Filters, 2 Block Carbon Filters, 1 Reverse Osmosis Membrane, and 1 Granular Active Carbon Filter.
The set guarantees pure water throughout the year
Reverse osmosis revolution Countertop attaches to your kitchen faucet without the need for a plumber.
It treats water through five stages. The stages include:
1st stage: Premium Quick-Connect 5 micron sediment filter. It helps remove dust and rust particles. Also, helps extends the life of the system and the membrane.
2nd stage: Premium Quick-Connect T28 coconut activated carbon filter – It reduces VOCs (volatile organic compounds), chlorine, cloudiness, offensive odors, colors, and unpleasant tastes.
3rd stage: Premium High Rejection TFC type reverse osmosis membrane (made in the USA). It removes 96%-99% of total dissolved solids (TDS), Arsenic, fluoride, lead, chromium, radium, viruses, bacteria, and more. The membrane produces 75/100 gallons per day capacity.
4th stage: Deionizing mixed bed polishing filter made by Omnipure (USA). This stage produces exceptionally clean water with a minimum TOC background and a perfect fit for the removal of radiation.
5th stage: Premium Coconut Carbon T33 type filter cartridge.
The system comes with a chrome metal 2-way diverter for kitchen faucets by default. The diverter works with all types of faucet except sprinkler or pulls down faucet
APEC Water Systems RO-CTOP Portable Countertop Reverse Osmosis fits the most standard. It’s NOT compatible with pull-out faucets, special size designer faucets, and sprayer faucets
The system treats water in 4-stages that include:
1st stage: premium quick-connect 5-micron sediment filter that helps removes dust, particles, and rust. It also protects and extends the life of the membrane.
2nd stage: premium quick-connect coconut shell activated carbon filter – It helps get rid of unpleasant VOCs, chlorine, odors, cloudiness, and colors.
3rd stage: select FILMTEC (Dow Chemical) high rejection TFC reverse osmosis membrane. Removes up to 99% of total dissolved solids (TDS) and contaminants such as arsenic, lead, fluoride, chromium, radium, and much more.
4th stage: premium quick-connect coconut shell activated carbon filter -removes any possible residual tastes.
APEC water system Replacement filter and membrane
APEC Water Systems FILTER-SET is a replacement filter for RO-CTOP and RO-CTOP-PH. It is compatible will all countertop reverse osmosis system
It includes sediment & coconut shell carbon filter that help protect and prolong the lifespan of your RO
This inline carbon pre-filter is compatible with RO-CTOP/RO-CTOP-C 2nd&4th stage, RO-CTOP-PH/RO-CTOP-PHC 2nd stage and RO-QUICK90 stage 2&4
APEC CT-1SED is a 1 stage sediment filter for RO-CTOP/RO-CTOP-C stage 1, RO-CTOP-PH/RO-CTOP-PHC stage 1, and RO-QUICK90 stage.
It is compatible with all 10-inch industry-standard sized water filter system and Features 1/4 inch quick connect fittings for easy filter change-outs
The 1st stage sediment filter help remove dust, particles, and rust
This is 75 GPD Membrane Replacement Filter for Reverse Osmosis System-
Express Water Countertop Reverse Osmosis Water Filtration System is a 4-stage system that fits most standard faucet types. The 4-stages include
1st stage: Sediment filter which helps filter dirt, dust, sand, and rust.
2nd stage: Granular Carbon Filters Removes chlorine, volatile organic chemicals, and odor-causing compounds.
3rd stage: the Reverse Osmosis Membrane. Remove contaminants like lead, arsenic, chromium, fluoride, TDS, radium, and others.
4th stage: Post Activated Carbon Filter. The final stage that removes any possible taste or odor.
Sediment filter, Granular Carbon Filters, and Post Activated Carbon Filter are changed twice a year while the membrane is replaced once a year.
It is certified by an independent laboratory to NSF standard 58 and Operates on 45-80 PSI and 40-85°F.
The package includes 13/16” male thread, 13/16” female thread, and 15/16” female thread faucets for the most standard faucet. It also comes with hygienic system faucet and tubing for setup up to about 3 feet from your faucet
For every one gallon of water produced the system discharges between one and three gallons (depending on the pressure and quality of your incoming water)
Replacement filter for Express water Countertop Reverse Osmosis System
The set includes 3 inline filter design that lasts for 6 months. These are sediment filter, granular activated carbon and post activated carbon.
They help reduce contaminants such as Chlorine, Rust, Sand, Total Organic Carbon (TOC), Dirt, Pharmaceuticals, Silt, Turbidity, Dust, Volatile Organic Chemicals (VOC), Herbicides, Industrial Solvents, Insecticides, Pesticides, Chemicals causing bad tastes, odors, and more.
The filters are fully compatible with 1/4″ quick connect tubing and are certified by an independent laboratory to NSF standard 58
The set includes 6 inline cartridges with 100 GPD RO Membrane. These are 2-post activated carbon, 2 granular activated carbon, 2 sediment filter, and 1-reverse osmosis membrane.
This set will guarantee pure water for 1-years
The set includes three inline cartridges with 1 100 GPD RO Membrane. These include RO membrane, sediment filter, granular activated carbon and post activated carbon.
OnliPure Purifier Reverse Osmosis Countertop is 4 –stage water filter. The stages include
Stage 1: Five Micron Sediment Filter that removes particles such as sand, sediment, and rust
Stage 2: Coconut Based Activated Carbon Block Filter that removes VOCs, odor, chemical residues, and carcinogens such as THM’s and pesticides.
Stage 3: Reverse Osmosis Membrane. Provide 75 gallons of water per day
Stage 4: OnliPure Ion Exchange Post Filter. Polishing OnliPure Post Filter reduces any leftover contaminants after the Reverse Osmosis process to zero TDS.
Onli pure replacement filter
The buddle include
FIRST STAGE FILTRATION – 5-micron Prefilter removes Sediment, Rust, and other large particles.
SECOND STAGE FILTRATION – Carbon Block Filter removes Chlorine and other Disinfection by-products.
FOURTH STAGE – OnliPure Ion Exchange Post Filter. Polishing OnliPure Post Filter reduces any leftover contaminants after the Reverse Osmosis process to zero TDS.
AQUA TRU Countertop Water Filtration Purification System is NSF certified to remove 82 contaminants
The system comes with the first filter that lasts from 6 months to 2 years.
AQUA TRU reverse osmosis system is a 4-stage water purification process. The 4-stage include
Stage 1: mechanical pre-filter- this is sediment pre-filter that removes sediment and cloudiness in the water
Stage 2: reverse osmosis pre-filter. This is an activated carbon filter that removes chlorine and chloramines
Stage 3: the US made reverse osmosis membranes. It helps remove toxic inorganic contaminants including lead, chromium 6, arsenic, and nitrates
Stage 4: Activated carbon filter. This activated carbon filter VOC filter. It helps remove toxic organic chemicals including pesticides, drug residues, PFOA and PFOS
Its digital display will tell you when to change the filter.
This system features a removable tap water tank and dispensing tank
AQUA TRU Replacement filter and membrane
The combo pack includes 2-prefilters and 1 carbon filter.
2-pre filter is Stage 1 & 2 Pre-Filter for the AquaTru Countertop Water Filtration System.
The carbon filter is Stage 4 activated Coconut Carbon Shell VOC.
This combo pack will last for 1 year
This is stage 3 reverse osmosis membrane.
The RO membrane will last two years or 1200 gallons
This is stage four activated carbon filter to remove Volatile Organic compounds.
It is replaced every year or after treating 600 gallons
A two-year combo pack includes 4 Pre-Filters, 2 Carbon Filters, and 1 RO Filter.
Pre-filter is stage 1 and 2 filters that reduces sand, silt, sediment, rust, and particles from water.
The carbon filter is stage 4 high quality activated carbon.
Ro filter is stage 3 reverse membrane
AQUA TRU Countertop Reverse Osmosis Water Filter Purification System has two tank tap water tank where you add untreated water from the tap and clean water/dispensing tank where filtered water is stored ready for human consumption
You can get an additional clean water/dispensing/purified water tank to carry your water in the office or store water in the fridge.
The tank is made of shatterproof and breaks resistant BPA free Plastic. It also has a Spill-resistant pour spout.
SimPure Y5 is a stage 4 reverse osmosis water filtration system ad tested against NSF standards. The stages include
Stage 1 and 2 composite filters that include sediment filter that helps remove sediment, sand, dirt, dust, and particles
It also includes carbon pre-filter to remove limescale, lead chlorine, fluoride, taste, odor, and other radioactive substances.
Stage 3: 0.0001 micron RO membrane that helps remove viruses, PFAS, bacteria, organic matter, and heavy metals
Stage 4: activated carbon. It includes activated carbon granules made from coconut shells.
It has four temperature settings with instant heat. This help Enjoy pure water and various drinks in four temperature mode. The mode includes Room Temp, Milk Powder, Tea, and Coffee.
Simpure is 5 in 1 water purifier, could be used as drinking dispenser, water-heating kettle, under-sink filtration, filter pot, tea bar machine.
No installation is required you just plugin and you get purified water right away.
It comes with two removable tanks 5L removable water tank with a 1.5L internal pure water storage.
The system has a truly smart system. The smart system is a water quality indicator and filters replacement alert that allows you to directly monitor the water quality and the lifespan of the filters.
The pure water to drained water ratio can reach to 5:1 by the Recycling Multi-filtration Tech
SimPure Y5 CF Filter Replacement Cartridge and membrane
This is stage 1 and 2 CF- composite filter.
It is commended to replace the Y5 CF Filter every 3-6 months to ensure the quality of the water.
This is STAGE 3 – 0.0001 micron RO membrane
This is STAGE 4: Carbon Fiber Filter to effectively remove pesticides, pesticide residues, odors, organic matter in water, residual, chlorine, and other radioactive substances.
It is recommended to replace the Y5 CB Filter every 3-6 months to ensure the quality of the water.
SimPure Y6 is a 3 –stage water purification process with UV Sterilization. The three stages include
Stage 1 sediment filter
Stage 2 activated carbon
Stage 3 0.0001 micron membrane
After your water goes through the three stages it goes to last stage UV Sterilization that helps destroy micro-organisms.
It has two removable tanks 5L removable tank with a 1.5L internal pure water storage,
SimPure Y6 Replacement Cartridge and membrane
This is STAGE 1: PP + CTO composite filter. It is recommended to change every 3-6 months
This is STAGE 2: 0.0001 micron RO membrane. It is commended to replace the Y6 RO Filter EVERY YEAR to ensure the quality of the water.