Product Overview: Think of the Flow Restrictor (FR) as placing your thumb over the end of a water hose. If you let the water flow freely, there is no pressure. But restrict the flow, and pressure builds up instantly. The FR is installed on the wastewater line of your RO. By restricting the escaping water, it forces the Booster Pump's high pressure against the RO Membrane, pushing pure water out.

Why Choose Our Flow Restrictor? Without a working FR, all the water pumped by the motor will simply flow out the reject pipe, and you won’t get a single drop of pure water. Moreover, if an old FR is choked, it will burst the membrane housing. Our premium Flow Restrictors are precisely calibrated to match your membrane's GPD rating, ensuring the perfect balance between pure water production and membrane flushing. Always change your FR when you change your RO Membrane!