Two protective nets for pool and spa filter protection (filter not included). - Material and durability: Made from high-quality nylon; flexible, highly elastic, durable and reusable. - How it helps: Dense mesh catches fine debris before it reaches the pump and filter, stopping leaves, grass, insects, dust and pollen from clogging the system. - Performance benefits: Helps keep the filter cleaner, extends filter life, and improves overall filtration performance. - Easy to use and care: Attaches over the filter housing with quick setup and can be easily disassembled for washing. Reusable and reduces the need for frequent filter cleaning. - Compatibility and replacement: Designed to fit most standard filter housings. For best results, replace the net every 4–8 weeks. - Practical use scenarios: - Backyard pool during windy days or seasonal shedding to reduce debris entering the filter. - Spa or hot tub filtration to protect the filter from fine particles. - Above-ground or in-ground pool systems to add an extra layer of protection and extend filter life.