Purpose

• Flow Restrictors (also known as Flow Controls or Capillaries) are required for all reverse osmosis systems. The Flow Restrictor must be properly sized to the RO membrane capacity. Flow Restrictors create pressure throughout the reverse osmosis membrane element and maintain a desired ratio of reject flow (to drain) and permeate (product) flow.

Features 

• Quick connect fittings

• Simply push your 1/4" poly tube firmly into the quick connect fittings located on both the inlet and outlet ends of the flow restrictor and you are done.

Guideline for selecting an inline flow restrictor

Service Life

•  replace the Flow Restrictor each time you replace your reverse osmosis membrane (Recommended as a precaution)

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.