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HydroLogic Stealth-RO150™ Membrane Filter



3 in stock


98+% PPM Rejection
1 membrane for stealth-RO150 and 2 membranes for the stealth-RO300
Filters up to 150 GPD (gallons per day)
Replace between 6 months to 2 years
RO output depends on the source water temperature. At 77°, the system should produce 100% of the rated output. As the temperature drops or increases, so does the output.
Test the RO and source/inlet water to see what percentage of the inlet water’s PPM the Stealth-RO150 is filtering out (rejection %). You should see approximately 98% of the inlet PPMs being removed when the membrane is new. If the rejection % falls under an acceptable level (typically 90%) it’s time to change the membrane
When the flow rate of the product water slows down significantly. This can also happen if your pre-filters are clogged. If you change your pre-filters and the product water still flows slowly then it’s an indication you need a new membrane. When it doubt contact Hydrologic
Flow rates of RO systems are based on source water @ 65 psi / 77° / 500 ppm
If you would like to know the TFC specifically for your wanted output, check out our TFC chart.

The equation is Rated Permeate Flow ÷ TCF (Temperature Correction Factor from Table below) = Temperature Correct Flow
For example:
If you want to produce 150 GPD and the source water temperature is 59° the Temperature Correct Flow equation is 150 ÷ 1.422 = 105 GPD.
The approximate amount of water produced per day would be 105. In order to achieve the desired 150 GPD than you would have to go with a system that is rated more than 150 GPD.

Membrane Type: Thin Film Composite
Maximum Operating Temperature: 113°F (45°C)
Maximum Operating Pressure: 100 PSI
Maximum Feed Water Turbidity: 1 NTU
Maximum Feed Sit Density Index (SDI): 5 SDI
Chlorine Tolerance: <0 PPM