In a through penetration system, what is affected by using different manufacturers' products?

In a through penetration system, using products from different manufacturers can significantly impact installation flexibility. This is because each manufacturer may have specific design features, dimensions, and installation requirements for their products. When components are not designed to work together seamlessly, it can lead to complications during installation, such as mismatched sizes or connections that do not align properly.

Installation flexibility refers to the ease with which a system can be configured or modified. When products from various manufacturers are used, the installer may have to navigate incompatible specifications, which could limit their ability to adapt the installation to unique site conditions or requirements. This could potentially increase labor time and complexity, making it less flexible compared to using components from the same manufacturer that are designed to work together.

In contrast, while cost-effectiveness, durability, and overall compliance with standards are important factors, they are not as directly influenced by using different manufacturers' products in the context of installation flexibility. Each of these aspects can vary based on specific materials and installations but are not as prominently affected by the compatibility and design considerations inherent in using products from different sources.