Hydro-Logic Stealth RO150/RO300 Membrane

• 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
• Dimensions (H x W): 12" x 2.125"
• Weight: 0.525 lbs
• 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.

There are two indications as to when to change your membranes

1. 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
2. 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 in doubt, contact HydroLogic

Flow rates of RO systems are based on source water @ 65 psi / 77° / 500 ppm