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Best Selling Household RO Membrane

Reverse osmosis membranes reduce dissolved minerals, certain salts, nitrates/nitrites, lead, arsenic, Giardia and Cryptosporidium encysts.

Reverse osmosis membranes reduce dissolved minerals, certain salts, nitrates/nitrites, lead, arsenic, Giardia lamblia and Cryptosporidium encysts. Keep your family's drinking water safe.

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)

Advantages of reverse osmosis membranes

Improved water taste and quality through excellent TDS suppression

Quality filtration reduces a wide range of impurities in drinking water

Provides up to 75 gallons of pure drinking water per day

Important information

1. The water production listed in the table is an average value, and the difference between the minimum water production of a single membrane element and the nominal value does not exceed 20% of the nominal value.

2. Wet-type membrane elements have been strictly tested before leaving the factory, and use 1 .0% sodium bisulfite (10% propylene glycol antifreeze in winter) solution for storage treatment, and then vacuum packaging, the outer packaging is Cardboard box. In order to prevent the growth of microorganisms during short-term storage, transportation and system standby, it is recommended to soak the components with a protective solution (prepared with RO produced water) containing 1 .0% sodium bisulfite (food grade).

3. The RO produced water in the first hour of operation should be discharged.

4. It is forbidden to add any chemical agents that have an impact on membrane elements during storage and operation. 


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.