Reverse osmosis replacement filters Complete Replacement Set ro
If a semi-permeable membrane separates a concentrated solution from
a dilute solution, water will flow from the dilute solution to the
concentrated side in order to bring the two solutions into
equilibrium through a process called osmosis. However, if
sufficient pressure is applied to the concentrated solution, it is
possible to force water to flow into the opposite direction. This
is the main principle on which RO is based.
A semi-permeable membrane allows water to diffuse through the
membrane and only allows a small amount of ions through. RO
membrane rejects contaminants by three mechanisms at the surface:
repulsion from the ion charge and density; dipolar interactions;
and the size of the molecule being larger than the pore size of the
Companies that specialize in making RO membranes are continually
developing new membranes that allow more water and fewer harmful
contaminants through. Some membranes are so specialized that they
are developed to specifically block ions of interest, such as
nitrates, boron or silica.
Semipermeable membrane to remove ions, molecules, and larger
particles from drinking water can remove chlorine,
fluoride,bacteria, microorganism, etc
|Stable Desalination %||96~98%||96~98%||96~98%||96~98%|
Mean Permeable Flow GDP (L/d)
|Active Film Area ft2(m2)||4(0.4)||4.2(0.42)||5.0(0.5)||5.3(0.53)|
|Test Condition||Test Pressure||65pai(0.45Mpa)|
|Test Water Temperature||25℃|
|Test Water Concentration(NaCl)||500ppm|
|Test Water PH||6.5-7.5|
|Recycle Rate %||15|
|Max Operating Temp.||300psi(2.0Mpa)|
|Max. Inlet Water Temp.||45°C|
|Max Water Inlet Silt Density Index (SDI)||5|
|Inlet Water Chlorine Tolerance||<0.1mg/l|
|Inlet Water PH Range, Continuous Operation||3~10|
|Inlet Water PH Range, Short-Term Cleaning||2~11|
|Max. Pressure Drop of Single Membrane||10psi(0.07Mpa)|
Q: What is a residential RO Water Filter?
It is a system that uses the principle of reverse osmosis to remove
95-99% of all the mineral and chemical contaminants from raw tap
water. It gives you the quality of bottled water with the
convenience of a faucet mounted on your kitchen sink.
Q: How does RO Water Filter different from a water filter?
Ordinary water filters use a screen to separate only particles of
dirt sediment from water. RO water filter employs a semi-permeable
membrane that removes not only particles but also an extremely high
percentage of dissolved contaminants, molecule by molecule, from
raw tap water.
Q: Will RO Water Filter remove sodium from the water?
Yes! Reverse osmosis was originally designed to make seawater
drinkable for the Navy. It is ideal for anyone on a low sodium
Q: Does RO Water Filter remove bacteria? Cryptosporidium?
YES! A reverse osmosis membrane has a pore size much smaller than
bacteria, virus pyrogen, or the Cryptosporidium parasite. When
functioning properly, it will remove all microorganisms from tap
water and produce sterile water.
Q: Don't we need the minerals that are removed from the water?
Most of the minerals that we receive are from the foods we eat.
Only a very small percentage comes from the water we drink.