Aquarium Water | Reverse Osmosis | RODI Water | ReefKeeper Water | Pure Drinking Water for your home, Stop buying bottled water , home water filter systems Aquarium Water Guru

To view all of our units scroll down. Which System do you need?

The Water Cop is our basic RO unit and produces 50 or 75 GPD.

The ED is our WaterCop unit supercharged with a Non-electric permeate pump driven R.O. system for 50 or 75 GPD.

The Mini Under Sink RO is our smallest RO unit but still produces 50 GPD.

The Max 50 Under Sink RO is the mini undersink RO upgraded with the Energy Recovery Device (ERD) non-electric permeate pump driven system.

The Dual Home Reef The drinking water system for areas that have high phosphate, nitrate,or arsenic. Also a favorite of Reefkeepers, drinking, and zero TDS water. See our Reefkeeper products page.

If you just want an economical undersink RO without an icemaker then the Mini under-the-sink RO or Water Cop is the way to go. The prefilters on the Water Cop are twice the size/capacity as the Mini unit.

If you want a basis undersink RO but want a refrigerator/icemaker to be hooked up, then you will need a permeate pump & connections, so choose the Max 50 for good city water and the ED unit for well water where more prefiltering is typically needed.

If you want a system for both the undersink and deionized water then choose one of the dual home reef systems. Look in the ReefKeepers Section.

Our Mighty-Mite unit is a portable RO unit with no bells & whistles.

Mini Under-Sink-RO System 50GPD $109.95	Water Cop 5 Stage RO 50 GPD $149.95
Under-the-Sink RO System 50GPD With Permeate Pump $154.95	ED - Extra Duty Reverse Osmosis Unit $194.95
RO MIGHTY MITE SYSTEM 50GPD $99.95	Dual Home Reef with Tank & Faucet for under the sink $189.95

In order to best serve the needs of our customers, we offer different drinking water systems with varying features. In the table below are the features and options for each model. The GPD rating is based upon optimum conditions; a water temperature of 77 degrees F and 50 PSI tap water pressure. 50 PSI is a very common water pressure, only when you are in need of 65 PSI will you find trouble. Unless specifically requested, these systems come equipped with a 50 GPD membrane. Membrane options include the 75 and the 100 gallon per day.Â

Model	ASOV	Stages	D.I.	PSI	Storage	Faucet	Clear Canister	Fast Flush	GPD	Permeate Pump	U.V.
Dual Home/Reef	YES	6	YES	OPTION	3.2 Gal	YES	OPTION	OPTION	50 / 75	OPTION	OPTION
ED	No*	5	OPTION	OPTION	3.2 Gal	YES	OPTION	OPTION	50 / 75	YES	OPTION
The MAX 50	No*	4	OPTION	OPTION	3.2 Gal	YES	NO	OPTION	50/75	Yes	Option

* The Permeate pump acts as the Auto Shut Off Valve to shut down the water supply to the unit when full.

ASOV	Automatic Shut Off Valve -- A mechanism which is connected to the system and automatically stops the flow of water when the system is not in use. This feature saves water and prolongs filter life.
Stages	The number of filters that make up the total system. See the Filter page for more information.
DI	Deionization stage is very useful for the reduction of phosphates and other materials which may pass through the R.O. membrane.
PSI Gauge	A gauge that is connected inline to measure line pressure.
Storage	2.2 or 3.2 gallon pressurized holding tank. Larger tanks are available up to 88 gallons .
Faucet	A high quality two position gooseneck faucet that mounts at your sink for drawing purified water.
Clear	Clear filter housings allow you to see your filters.
Fast Flush	A mechanism that is connected to the system to allow flushing of the membrane which prolongs it's life.
GPD	The specified output rating of a reverse osmosis membrane. FilmTec membranes are rated at 50 psi using 77F water. Lesser known or lower cost membranes are rated at 65 psi which is an uncommon household water pressure.
Permeate Pump	A non-electric pump that connects into an R.O. system. It enhances system performance and decreases water consumption by up to 80%. This is actually a non-electric energy recovery device (ERD). The pump uses only the waste water as power to force the permeate into the storage tank. This is the only way to take advantage of ice and water at the refrigerator. Non-pump driven R.O. systems will not work on newer refrigerator models.
UV	Ultraviolet Sterilizer -- Sterilizes pathogens that may be in your water supply by exposing the pathogens to ultraviolet radiation. This type of irradiation damages the DNA of any bacteria, preventing reproduction and giving you worry free water when you have a tainted supply. If your health department has informed you that e-coli are present, UV is a MUST. If you are in an area that frequently has boil-water orders, the addition of UV should be a strong consideration!