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Home>Drinking Water Systems>Reverse Osmosis Systems


Reverse Osmosis Systems


Part One, RO System Overview         Part Two, RO System Overview
Double-click on the videos above to watch an Overview of Reverse Osmosis Systems


For Reverse Osmosis Membranes, click here. For help identifying your reverse osmosis system and replacements click here.





WaterFilters.NET RO5P-WF
Reverse Osmosis System with Pump

5-Stage; 50 gallons per day

5 stage RO5P-WF Reverse Osmosis System with Pump
More Information

Product Code: RO5P-WF
(Pump, Standard Faucet and Filters Included)



RO5P-WF 5 Stage Reverse Osmosis
Replacement Filters and Membrane


See All Replacement Filters

Click for Replacement Filter Information:

Stage 1 - PreFilter - Replace Every 6 Months:
P5-10-WF Filter

Stage 2 - Carbon Filter - Replace Every 6 months:
EP5-10-WF Filter

Stage 3 - Carbon Filter - Replace Every 6 months:
EP5-10-WF Filter

Stage 4 - Membrane - Replace Every 2 years:
TW30-1812-50 Membrane

Stage 5 - Post Filter - Replace Every 6 months:
IC10-14C-WF Filter






WaterFilters.NET RO5-WF
Reverse Osmosis System

5-Stage; 50 gallons per day

RO5-WF 5 Stage Reverse Osmosis System
More Information

Product Code: RO5-WF
(Standard Faucet and Filters Included)



RO5-WF 5 Stage Reverse Osmosis
Replacement Filters and Membrane


See All Replacement Filters

Click for Replacement Filter Information:

Stage 1 - PreFilter - Replace Every 6 Months:
P5-10-WF Filter

Stage 2 - Carbon Filter - Replace Every 6 months:
EP5-10-WF Filter

Stage 3 - Carbon Filter - Replace Every 6 months:
EP5-10-WF Filter

Stage 4 - Membrane - Replace Every 2 years:
TW30-1812-50 Membrane

Stage 5 - Post Filter - Replace Every 6 months:
IC10-14C-WF Filter






Pentek RO-3500
Reverse Osmosis System

3-Stage RO

US Filter RO3500 3 Stage Reverse Osmosis System
More Information

Product Code: RO-3500
(Filters and Faucet Included)
SALE $324.99



RO-3500 Reverse Osmosis
Replacement Filters and Membranes


See All Replacement Filters

Click for Replacement Filter Information:

Stage 1 - PreFilter - Replace Every 3 Months:
D-15 Filter

Stage 2 - Postfilter - Replace Every 12 Months:
D-20 Filter

Stage 3 - Membrane - Replace Every 2 Years:
ROM-230TN Membrane






PuROTwist 4000 Gold Series
Easy-Change Reverse Osmosis System

4-Stage RO; 50 Gallons Per Day

PuroTwist 4000 4 Stage Reverse Osmosis System
More Information

Product Code: RO-PT4000
(Filters and Faucet Included)



PuROTwist 4000 Reverse Osmosis
Replacement Filters and Membranes



PuroTwist Reverse Osmosis System Membrane
See All Replacement Filters

Click for Replacement Filter Information:

Stage 1 - PreFilter - Replace Every 6 Months:
Omnipure Q-Series Q5605 Filter

Stage 2 - Carbon - Replace Every 12 Months:
Omnipure Q-Series Q5633 Filter

Stage 3 - Membrane - Replace Every 2 Years:
50 Gallon PuROTwist TQ56-50FC Membrane

Stage 4 - PostFilter - Replace Every 12 Months:
Omnipure Q-Series Q5633 Filter






PuROTwist 3000 Easy-Change
Reverse Osmosis System

3-Stage RO; 50 Gallons Per Day

PuroTwist 3000 3 Stage Reverse Osmosis System
More Information

Product Code: RO-PT3000
(Filters and Faucet Included)



PuROTwist 3000 Reverse Osmosis
Replacement Filters and Membranes



PuroTwist Reverse Osmosis System Membrane
See All Replacement Filters

Click for Replacement Filter Information:

Stage 1 - 10 Micron Carbon - Replace Every 6 Months:
Omnipure Q-Series Q5621 Filter

Stage 2 - Membrane - Replace Every 2 Years:
50 Gallon PuROTwist TQ56-50FC Membrane

Stage 3 - GAC Carbon - Replace Every 12 Months:
Omnipure Q-Series Q5633 Filter






PuROLine 5000
Reverse Osmosis System

5-Stage RO; 100 Gallons Per Day

PuROLine Reverse Osmosis System
More Information

Product Code: RO-PL5000
(Filters and Faucet Included)



PuROLine 5000 Reverse Osmosis
Replacement Filters and Membranes


See All Replacement Filters

Click for Replacement Filter Information:

Stage 1 - 20 Micron Sediment - Replace Every 4 Months:
Ametek/USFilter/Pentek S1 Filter

Stage 2 - 5 Micron Sediment - Replace Every 2 Months:
Ametek/USFilter/Pentek P5 Filter

Stage 3 - Activated Carbon Block - Replace Every 12 Months:
Culligan D-30 Filter

Stage 4 - RO Membrane - Replace Every 2 Years:
100 Gallon Osmonics Desal TFM-100 Membrane

Stage 5 - Post Carbon Filter - Replace Every Year:
Omnipure CL-Series CL10ROT33-B Inline Filter






Goldline - WQA Gold Seal
Reverse Osmosis System

5-Stage RO; 50 Gallons Per Day

Goldline Reverse Osmosis System
More Information

Product Code: RO-GL
(Filters and Faucet Included)



Goldline Reverse Osmosis
Replacement Filters and Membranes


See All Replacement Filters

Click for Replacement Filter Information:

Stage 1 - 5 Micron Sediment Filter - Replace Every 2 Months:
Ametek/USFilter/Pentek P5 Filter

Stage 2 - Activated Carbon Block - Replace Every 12 Months:
Culligan D-30 Filter

Stage 3 - Activated Carbon Block - Replace Every 12 Months:
Culligan D-30 Filter

Stage 4 - RO Membrane - Replace Every 2 Years:
50 gallon Osmonics Desal TFM-50 Membrane

Stage 5 - Post Carbon Filter - Replace Every Year:
Omnipure CL-Series CL10ROT33-B Inline Filter






Valueline
Reverse Osmosis System

5-Stage RO; 50 Gallons Per Day

Valueline Reverse Osmosis System
More Information

Product Code: RO-VL
(Filters and Faucet Included)



Valueline Reverse Osmosis
Replacement Filters and Membranes


See All Replacement Filters

Click for Replacement Filter Information:

Stage 1 - 5 Micron Sediment Filter - Replace Every 2 Months:
Ametek/USFilter/Pentek P5 Filter

Stage 2 - Activated Carbon Block - Replace Every 12 Months:
Culligan D-30 Filter

Stage 3 - Activated Carbon Block - Replace Every 12 Months:
Culligan D-30 Filter

Stage 4 - RO Membrane - Replace Every 2 Years:
50 gallon Osmonics Desal TFM-50 Membrane

Stage 5 - Post Carbon Filter - Replace Every Year:
Omnipure CL-Series CL10ROT33-B Inline Filter






Hydrologic Evolution-RO1000
Tankless RO System

3-Stage; 1000 gallons per day

Evolution RO1000 Reverse Osmosis System
More Information

Product Code: Evolution-RO1000
(Filters Included)



Evolution-RO1000 Reverse Osmosis
Replacement Filters and Membranes


See All Replacement Filters

Click for Replacement Filter Information:

Stage 1 - PreFilter - Replace Approximately Every 2,000 gallons:
22043 Filter

Stage 2 - Membrane - Replace Approximately Every 2 years for Residential Use:
22045 Membrane

Stage 3 - Membrane - Replace Approximately Every 2 years for Residential Use:
22045 Membrane






Countertop RC540T35-T
Reverse Osmosis System

RC540T35-T Countertop Reverse Osmosis System
Click for System Details or to BUY
Priced from $309.99 to $314.99

Filters & Membrane Included with System

Countertop RO RC540T35-T System
Replacement Water Filters



Stage 1: 2" W x 10" L Inline 5 Micron Polypropylene Prefilter (K2505-JJ)

Stage 2: 2" W x 10" L Inline Granular Activated Coconut Shell Carbon Prefilter(K2533-JJ)

Stage 3: 35 Gallon Per Day Thin Film Composite Membrane (TFC)

Stage 4: 2" W x 10" L Inline Granular Activated Coconut Shell Carbon Postfilter (K2540-JJ)





Ace Hardware Reverse Osmosis System Filters & Membranes


Ace Hardware 45449 Reverse Osmosis System Replacement Filters and Membrane

Ace Hardware 4065017 Reverse Osmosis System Replacement Filters and Membrane

Ace Hardware 4195228 Reverse Osmosis System Replacement Filters and Membrane






American Plumber Reverse Osmosis System Filters & Membranes


American Plumber WRO-3000 Reverse Osmosis System Replacement Filters and Membrane

American Plumber WRO-3167 Reverse Osmosis System Replacement Filters and Membrane

American Plumber WRO-3500 Reverse Osmosis System Replacement Filters and Membrane






Ametek Reverse Osmosis System Filters & Membranes


Ametek HDRO-10AG / Ametek Kleen-Plus HDRO-10AG Reverse Osmosis System Replacement Filters

Ametek WSRO20-T / Ametek Kleen-Plus WSRO20T Reverse Osmosis System Replacement Filters

Ametek RO-2127 / Ametek Kleen-Plus RO-2127 Reverse Osmosis System Replacement Filters

Ametek RO-2300 / Ametek KleenPlus RO-2300 Reverse Osmosis System Replacement Filters

Ametek RO-3000 Reverse Osmosis System Replacement Filters

Ametek RO-3167 / Ametek Kleen-Plus RO-3167 Reverse Osmosis System Replacement Filters

Ametek WSRO10C / Ametek WSRO10C Reverse Osmosis System Replacement Filters






Crane Environmental Reverse Osmosis System Filters & Membranes


Crane Environmental RO-450 Reverse Osmosis System Replacement Filters and Membrane

Crane Environmental RO-550 Reverse Osmosis System Replacement Filters and Membrane






Culligan Reverse Osmosis System Filters & Membranes


Culligan Replacement O-Rings for AC & H Series Aqua-Cleer Reverse Osmosis Systems

Culligan AC15 Reverse Osmosis System Replacement Filters and Membrane

Culligan AC30 Reverse Osmosis System Replacement Filters and Membrane

Culligan H30S-R Reverse Osmosis System Replacement Filters and Membrane

Culligan H5 Reverse Osmosis System Replacement Filters and Membrane

Culligan H53 Reverse Osmosis System Replacement Filters and Membrane

Culligan H8 Reverse Osmosis System Replacement Filters and Membrane

Culligan H82 Reverse Osmosis System Replacement Filters and Membrane

Culligan H83 Reverse Osmosis System Replacement Filters and Membrane

Culligan H83S-R Reverse Osmosis System Replacement Filters and Membrane

Culligan H84 Reverse Osmosis System Replacement Filters and Membrane

Culligan LC-50 Reverse Osmosis System Replacement Filters and Membrane

Culligan RO-2127 Reverse Osmosis System Replacement Filters and Membrane

Culligan RO-2300 Reverse Osmosis System Replacement Filters and Membrane

Culligan RO-3000 Reverse Osmosis System Replacement Filters and Membrane

Culligan Water Tower CWT-35 Reverse Osmosis System Replacement Filters and Membrane






GE Reverse Osmosis System Filters & Membranes

GE FQROMF Reverse Osmosis Membrane

GE FQROPF Reverse Osmosis Filters

GE FX12M Reverse Osmosis Membrane

GE FX12P Reverse Osmosis Filters

GE FX18M Reverse Osmosis Membrane

GE FX18P Reverse Osmosis Filters


GE Merlin Reverse Osmosis System

    GE Merlin 1266690 Sediment Filter

    GE Merlin 1262847 Sediment Filter

    GE Merlin 1237460 Carbon Pre Filter

    GE Merlin 1238342 Reverse Osmosis Membrane

    GE Merlin 1244746 Carbon Post Filter

    GE Merlin 1268260 Flush Kit





Honeywell Reverse Osmosis System Filters & Membranes


Honeywell AV-180 Reverse Osmosis System Replacement Filters and Membrane

Honeywell RO-5 Reverse Osmosis System Replacement Filters and Membrane

Honeywell RO-9100 Reverse Osmosis System Replacement Filters and Membrane






Hydrotech Reverse Osmosis System Filters & Membranes


Hydrotech HT-HTF Reverse Osmosis System Replacement Filters and Membrane






Kiss International Reverse Osmosis System Filters & Membranes
(Also known as Aquagenics, Drinking Water Solutions)


Kiss International Aristocrat 3000 & Standard 1 Reverse Osmosis System Replacement Filters

Kiss International Aristocrat 5000 Reverse Osmosis System Replacement Filters

Kiss International Diplomat Reverse Osmosis System Replacement Filters

Kiss International Duchess & Duke Reverse Osmosis System Replacement Filters






Pentek Reverse Osmosis System Filters & Membranes


Pentek RO-3000 Reverse Osmosis System Replacement Filters and Membrane

Pentek RO-3500 Reverse Osmosis System Replacement Filters and Membrane






Rainsoft Reverse Osmosis System Filters & Membranes


Rainsoft 9338 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft 9339 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft 9590 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft 9591 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft 9593 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft 9596 & 9596N Reverse Osmosis System Replacement Filters and Membrane

Rainsoft 9598 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft 21173 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft 21176, 21179, 21191 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft UF-10 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft UF-20 Reverse Osmosis System Replacement Filters and Membrane

Rainsoft UF-22, UF-22T Reverse Osmosis System Replacement Filters and Membrane

Rainsoft UF-50, UF-50T Reverse Osmosis System Replacement Filters and Membrane






US Filter Reverse Osmosis System Filters & Membranes


US Filter HDRO-10AG Reverse Osmosis System Replacement Filters and Membrane

US Filter RO-2127 Reverse Osmosis System Replacement Filters and Membrane

US Filter RO-2300 Reverse Osmosis System Replacement Filters and Membrane

US Filter RO-3000 Reverse Osmosis System Replacement Filters and Membrane

USFilter RO-3167 Reverse Osmosis System Replacement Filters and Membrane

US Filter WSRO10C Reverse Osmosis System Replacement Filters and Membrane






Water Resources International (WRI) Reverse Osmosis System Filters & Membranes


Water Resources International Ultra-Micron Reverse Osmosis System Replacement Filters

Water Resources International WRI-5 Super Deluxe Reverse Osmosis System Replacement Filters









Reverse Osmosis Systems (Total Products: 8)

Valueline Reverse Osmosis System Valueline Reverse Osmosis System
5-Stage RO; 50 Gallons Per Day; Air Gap
Valueline Reverse Osmosis System

PuROLine 5000 RO System PuROLine 5000 Reverse Osmosis System
5-Stage RO; 100 Gallons Per Day; Air Gap
PuROLine 5000 RO System

PuroTwist 3000 Reverse Osmosis System PuroTwist 3000 Reverse Osmosis System
3-Stage RO; 50 Gallons Per Day; Air Gap
PuroTwist 3000 Reverse Osmosis System

PuroTwist 4000 Reverse Osmosis System PuroTwist 4000 Reverse Osmosis Water Filtration System
4-Stage RO; 50 Gallons Per Day; Air Gap
PuroTwist 4000 Reverse Osmosis System

Pentek RO-3500 Reverse Osmosis System Pentek RO-3500 Reverse Osmosis System
3-Stage RO System; Filters and Faucet Included
Pentek RO-3500 Reverse Osmosis System

Goldline Reverse Osmosis System Goldline Reverse Osmosis System (WQA Gold Seal)
5-Stage RO; 50 Gallons Per Day; Air Gap
Goldline Reverse Osmosis System

Pentek RO-3000 Reverse Osmosis Water System Pentek RO-3000 Reverse Osmosis System
3-Stage RO System; Filters and Faucet Included
Pentek RO-3000 Reverse Osmosis Water System

Hydronic Evolution-RO1000 Tankless Reverse Osmosis System Evolution Tankless Reverse Osmosis System (1000GPD)
1000 Gallons Per Day; 3 Stage; Tankless - Reduced Wastewater
We strongly recommend the below
pump with all Evolution purchases.
Hydronic Evolution-RO1000 Tankless Reverse Osmosis System


Reverse Osmosis Water Filter Systems

There are a range of water filtration systems available to today's consumer to meet the different challenges of raising water quality. Often, a simple activated carbon filter does the trick, but many people have more complicated water problems, and find that they need more complex water filtration systems because of this. A reverse osmosis water filtration system will, in many cases, solve these more advanced problems.

Reverse osmosis (RO) water filtration is a multi-step water filtering process which works slowly but is extremely effective. Reverse osmosis systems are generally used to treat cooking and drinking water supplies. It's often used in industry but works very well in the home. Reverse osmosis uses the principles of osmosis (in which material passes slowly through a membrane and is concentrated and purified in the process) to produce very clean water.

The first step is that a simple sediment filter is installed and all water to be used passes through it; the filter catches large particles of materials such as rust or calcium carbonate (a compound which is not at all harmful but which isn't desirable in your drinking and cooking water - it's commonly used as an antacid). Sometimes a second filter of a similar design, but more fine, is used after the initial filtering. An activated carbon filter traps organic chemicals, and then the RO filter, which is a very fine membrane, is used. It may be helpful to think of all these filters as being similar to sieves with differently-sized holes. Basically, the process of reverse osmosis water filtration would be akin to draining cooked food through a series of increasingly-fine sieves, rather than just emptying the pot into a basic perforated colander. Reverse osmosis water filtration systems, being more complex and increasingly sensitive, can trap far more contaminants than just one simple carbon filter. Some RO systems will, even after the water has passed through the RO membrane, use yet another carbon filter or, alternatively, an ultra-violet lamp, to purify the water even further. The result of all of this filtering is extremely high quality water.

Reverse osmosis is not the most efficient of all water filtration systems, and some have expressed concern about the fact that it takes approximately four gallons of processed water to result in one gallon of clear water. However, its effectiveness makes it a preferred water filtration method for many and is worth the health benefits achieved from pure water. Some describe it as "ultrafiltration," which gives a sense of how powerful RO is. RO results in very pure water. The Water Quality Association says that RO filter systems produce water purity levels as high as 95 percent, which is extraordinary.

The fact remains that reverse osmosis water purification systems remove an astounding range of contaminants from your water. Arsenic, barium, cadmium, chromium (hexavalent), chromium (trivalent), copper, lead, nitrate, nitrite, radium 226/228, selenium, iron and TDS are all types of contaminants that reverse osmosis systems can remove from your water.

A reverse osmosis water filtering system is obviously more complicated than a simple carbon-filter water pitcher, but the benefits of its complex design are also obvious. For those who are concerned not merely with the aesthetics of their water - taste - but have more concrete problems with water quality, an RO water filter may be the best solution to your problem.