This CSM membrane and matching flow restrictor produces approximately 6.25-gallons per hour when installed in the 150gpd system sold on my site.
This membrane is a low pressure membrane that must be used with the booster pump pushing water at 75 PSI for expected results. 93% rejection rate.
The RE2012-LP Membrane comes with matching flow restrictor
How to change the membrane: Membrane Installation Instructions
Matching flow restrictor included.