General description Type VI Pool Filter: This pack includes 10 sponge cartridges designed for Bestway pool filters, specifically compatible with Bestway 58383 filters. These filters are also suitable for spa VI filters and other spa models that require type VI filters. Technical specifications Dimensions: 10.8 x 4 x 7.3 cm High quality Made of environmentally friendly elastic sponge Reusable after cleaning More cost-effective than traditional filters Longer service life Safety and environmental protection BPA-free Lead-free Cleaning and replacement Recommended to clean once a week Replace once a month for optimal filtration