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Water Purifier Ro Filter Membrane

  • High rejection stability at high input TDS

  • Standard size fits commonly used housings

  • Reverse osmosis membranes allow pure water to pass through the membrane while discharging many contaminants such as viruses, bacteria, heavy metals, fluoride and salts into the waste stream.

  • Our reverse osmosis membranes are thin film composite membranes and TFC membranes offer the best in productivity, recovery and retention. These membranes offer high performance and durability with optimal retention rates for increased pure water production in high TDS waters.

Specifications and main performance of membrane elements

TypeModelReject (%)Average Permeate GPD (m3/d)Working Pressure & Application Testing Conditions
Pressure psi (MPa)Solution Concentr. (PPm)Recovery Rate (%)
Household RO MembraneUM1812-5099.050(0.2)Working under extremely low pressure. Applicable to residential   water purifier and water purifying devices in hospital and laboratory water   treatment with TDS lower than 500 ppm.60 (0.41)25015
UM1812-75HR99.075   (0.28)
UM1812-7597.075   (0.28)
UM-2012-100HR99.0100   (0.38)
UM-2012-10097.5100   (0.38)
Special Size
    RO Membrane 
UM-2812-20097.0200(0.76)working under extremely low   pressure. Applicable to automatic water dispenser and residential drinking   fountain.100   (0.69)25020
UM-3012-30097.0300(1.14)100   (0.69)25020
UM-3012-40097.0400(1.51)100   (0.69)25020
UM-3013-40097.0400(1.51)100   (0.69)25020
UM-3012-50097.0500(1.89)100   (0.69)25020
UM-3013-50097.0500(1.89)100   (0.69)25020
UM-3013-60097.0600(2.27)100   (0.69)25020
UM-3013-70097.0700(2.65)100   (0.69)25020

Test conditions: Test pressure: 100 psi (0.69Mpa)

Test fluid temperature: 25 °C

Test solution concentration (NaCI): 250ppm

pH value of test solution: 7.5

Single membrane element recovery rate: 20%

Extreme usage conditions

Maximum operating pressure: 300psi (2.07Mpa)

Maximum inlet water temperature: 45°C

Maximum water intake SDI: 5 

Influent free chlorine concentration: <0.1 ppm

Influent pH range during continuous operation: 3~10

pH range of inlet water during chemical cleaning: 2~ 12

Maximum pressure drop of a single membrane element: 10psi (0.07Mpa)

Membrane element size

All units of the icon are: mm (inch)


1. Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

2. Q: Should we use our logo/brand?

A: Yes, OEM is absolutely supported. But for some items quatity is 1000pcs

3. Q: What is the filtering accuracy of RO membrane?

A: RO meembran filtering accuracy is 0.0001um.

4.RO membrene desalination rate and service life ?

A: RO meembran desalination rate more 98%,service life according to water quality 2-3years

5. Q: What is the payment?

A: Usually we offer two payment terms: by Alibaba or by TT. L/C and D/A.

6. Q: How long time have your company in water treatment?

A: We have more than 21 years experience in water treatment equipment/water treatment solution.