What two materials are widely used for hoses in aquatic pest management?

The selection of materials used for hoses in aquatic pest management is critical because they need to be durable, flexible, and resistant to various chemicals encountered in these types of applications. Ethylene vinyl acetate (EVA) and ethylene propylene diene monomer (EPDM) are both known for their excellent chemical resistance and flexibility. EVA is commonly used in environments where hose materials may encounter a range of aquatic chemicals, providing reliable performance. EPDM, on the other hand, offers superior resistance to water, heat, and ozone, making it suitable for use in aquatic environments.

In contrast, while other materials listed may have specific uses in different contexts, they do not necessarily provide the same combination of properties suited for the aquatic pest management field. For instance, polypropylene and PVC can be used for certain applications but may not be as flexible or resistant to the specific chemicals used in pest management. Similarly, rubber and nylon have their places in various industrial applications but are not as widely recognized in aquatic pest management as EVA and EPDM. Lastly, polyethylene and rayon do not specifically stand out for the requirements of durability and chemical resistance necessary for effective pest management hoses. Thus, the properties of EVA and EPDM make them the preferred choice in this context.