1812 series RO Membrane Element

RO membrane element for POU household water filter systems, replacement RO membrane element for water purifier, manufactured in China, widely selling to US and Europe.
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    1812 series RO membrane element is designed for household water filter system, with 50G and 75G product water options and universal standard size. 


· Universal standard 
· Long service life
· Reliable high rejection rate
Specification & parameters
Model tive Membrane
Area ft2(m2)
Permeate Flow
Stable Rejection Rate
of Test Method A (%)
Stable Rejection Rate
of Test Method B (%)
RO-1812-50 4.2(0.39) 50(0.19) 95 98
RO-1812-75 4.2(0.39) 75(0.28) 95 98
Standard test condition
Test Methods Concentration of Solution Temperature
pH Value Operating Pressure
Recovery Rate
A 500mg/L
25 7.5-8 60(0.41) 50
B 250mg/L NaCl 25 7.5-8 60(0.41) 20-30
Notes: The permeate flow of single membrane element may vary with in ±15%.
Operating limits and conditions:
Max.Working Pressure 300 psi(2.07MPa)
Max. FeedWater Temperature 45
Max. FeedWaterSDI15 5.0
Free Chlorine Concentration of FeedWater 0.1mg/L
pH Range of FeedWaterDuring Continuous Operation 3-10
pH Range of FeedWaterDuring Chemical Cleaning 2-12
Max. Pressure Drop of Single Membrane Element 10psi(0.07Mpa)
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