What advantages does PEX provide for distribution pipes?

PEX, or cross-linked polyethylene, offers several significant advantages for use in distribution pipes, making option B the correct choice.

Flexibility is one of PEX's standout features, allowing it to be installed in tight spaces without the need for numerous fittings, which can streamline the plumbing process and reduce labor costs. This flexibility also helps in reducing the likelihood of pipe breakage during temperature fluctuations, as the material can expand and contract.

In addition to its flexibility, PEX is resistant to scale and chlorine. This resistance helps maintain water quality by preventing mineral buildup that can restrict flow and is particularly beneficial in areas with hard water. Furthermore, PEX’s ability to withstand chlorine means it is less prone to degradation when exposed to disinfectants commonly used in municipal water systems.

Lower shipping costs stem from PEX's lightweight nature compared to traditional materials, making it easier and more cost-effective to transport. The ease of installation associated with PEX further enhances its appeal; it can be cut with simple tools and doesn’t require soldering, which makes it accessible for both professional plumbers and DIY homeowners.

The other options do not encompass the range of advantages that PEX provides. For instance, while maximum pressure tolerance and resistance to physical damage are important characteristics, they do