Reverse Osmosis Flow Restrictor Capillary Tube Insert (1) Insert RO Membrane Capillary Flow Restrictor (50 GPD Green), insert flow restrictor, easily inserts into 1/4" OD tubing located on the reverse osmosis membrane drain line. Many RO units have small insert style flow restrictors that are inserted into the 1/8" X 1/4" elbow that connects the drain tube to the membrane vessel. Compatible with quick-connect and compression fittings, the insert flow restrictor is Green and used with 50 GPD RO Membranes. The capillary (internal) flow controls work as brine water flow is restricted by forcing it through a thin capillary tube inside the regular 1/4" drain tubing. In order to perform correctly, the insert flow reactor must be situated correctly.
- For 150 Gallon Per Day Membranes