Culligan RO -Membrane Model is HS15

[gshing]

I plan to order a new membrane for my Culligan RO unit but am not sure of the capacity of the filter. I don’t think it is 36 gal per day filter. How do I determine the flow restrictor on the drain line? The model is a hs15 and has a red tab on the discharge line.

[waterfilters]

Based on your model # it is likely that the restriction on your system is 15 g/per day. As long as your membrane is equal to or higher (in g/per day) than your restriction, you will be fine. Assuming this is your situation a good membrane for your application would be found at the following link.
Culligan Compatible TFM36A and GE Desal Osmonics Membrane TFM-36-A for Reverse Osmosis Systems

Please confirm the size and style of your membrane before ordering.

Thank you,
WaterFilters.NET