1. Longlasting use: Made of robust PVC material, this cover outstanding thermal insulation and effective protection against wind, rain, and snow resistant to breakage with permanently stable sealing for years of use. 2. Filter savings: Reduces dependence on filter systems by providing tight protection against dirt particles and leaves, enabling easy water maintenance at low operating costs. 3. Easy operation: Specially shaped handles allow quick removal of the cover without deformation, universal fit for various spa models thanks to flexible material. 4. Quick application: Innovative valve system guarantees airtightness, preserves heat and hygiene easy assembly and convenient inflation within minutes for immediate readiness for use.