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The purpose of using liquidtight flexible metal conduit is primarily to protect wires from environmental hazards. This type of conduit is specifically designed to offer resistance to moisture and corrosive elements, making it suitable for areas where there may be exposure to water, chemicals, or other potentially damaging substances. It allows for movement and flexibility in installations while maintaining a durable barrier for the electrical conductors housed within it.

In contrast, while grounding is an essential aspect of any electrical installation, liquidtight flexible metal conduit itself is not primarily intended for grounding purposes. Aesthetic considerations, although important in certain applications, are secondary to the function of ensuring the safety and integrity of electrical wirings in exposed environments. Additionally, while the conduit provides some support for the wires, it does not serve as a rigid support structure, which is typically achieved with different types of conduits designed for that purpose. Thus, the benefits of using liquidtight flexible metal conduit are most pronounced in its ability to protect electrical wires from environmental hazards.