SpectraPure's advanced Rejection Rate & Permeate Flow Calculator brings professional grade accuracy to every installation and maintenance check, giving you the true health of your RO membrane in seconds.

Why Trust Our Results? We use the industry's most precise methodology that is built on verified engineering principles. This tool eliminates the need for spreadsheets and complex math. Our calculator goes beyond simple metrics to provide immediate actionable advice.

Trusted by professionals and backed by decades of reverse osmosis expertise.
- Only from SpectraPure.

Features:

Flow Correction Algorithm Utilizes proprietary FilmTec/DuPont formulas for all GPD flow rate calculations, ensuring results align with membrane manufacturer specifications.

Temperature Correction Factor (TCF) Implements a Split Arrhenius Equation for non-linear temperature compensation, using distinct activation energy constants (3020 and 2640) for temperatures below and above 25° C to model flux accurately

Pressure Correction Factor (PCF) is Calculated from the ratio of the users Actual Net Driving Pressure to the Standard Test Conditions.

Osmotic Pressure (OP) is dynamically calculated from the user's Source TDS input and subtracted from the Feed Pressure to derive the true NDP.

True Rejection Rate Calculated using the foundational RO efficiency formula
1−(RO TDS/Tap TDS)