Autopilot Chlorine Generator Bypass Manifold P/N: 94113 AutoPilot's patented bypass manifold is a pre-assembled unit designed to control the flow rate delivered to our cell. The spring check valve in the manifold allows excess flow, over 20 gpm, to by-pass the cell. The water in turn flows at a controlled rate through the cell where it is super chlorinated. The in-line strainer on the inlet side of the manifold protects the tri-sensor and production cell from debris that might bypass the filter. The location of the strainer next to a connection union makes periodic cleaning easy. The design of our patented bypass manifold guarantees optimum chlorine production and simplifies the installation process of the AutoPilot Purifing System. 1.) In-line Strainer - The in-line strainer protects the Tri-Sensor and the Cell from debris that may by-pass the filter and obstruct either component. The location of the strainer in the connecting union makes it easy to remove for periodic cleaning. 2.) Tri-Sensor - The Tri-Sensor is a three way sensing device which measures flow, salt level, and water temperature. 3.) Chlorine Production Cell - The cell produces 100% pure Sodium Hypochlorite in your pool plumbing returning it to your pool. 4.) Check Valve - The check valve in the Manifold allows all water flowing through the plumbing at a rate greater than 20 gallons per minute to by-pass the production cell to maximize the production of chlorine.