Manifold Installation Guide Warmboard Inc What is Intake Manifold, its Diagram and How it Works What Is an Intake Manifold and What Does It Do? Intake Manifold 101: Ensuring the Cylinders are Working Their Best Manifold 3 3 with cut off valve (metric) manifold (10 holes, diameter: 58mm) for solar collector, for solar water heater. Manifold for solar collector Description: This listing includes: 1 set of manifold (10 holes, hole diameter: 58mm) Application: it can be used for the solar collector 10 tubes, (it is suitable for tube size: diameter 58*length1800mm)