General description The Intex S1 Foam Pool Filters are designed for effective filtration in Intex Pure Spas and various pool systems. These reusable and washable filters ensure a cleaner and healthier swimming experience by capturing particles and sediment efficiently. Technical specifications Type: S1 filter sponge Material: Premium polyester fiber Recommended replacement frequency: Every two weeks Compatibility and accessories Compatible with Intex 28604 and 29000 filtration pumps Suitable for S1 and most pool filters on the market Usage Ideal for swimming pools, aquariums, and spas Enhances biofiltration and maintains water clarity