Longer Service Life: Unlike Traditional Filters, Our Sponge Filters Are Built To Last, Offering Extended Service Without Compromising Performance. Bpa And Lead-Free: Our Filters Are Free From Harmful Substances, Ensuring Safety And Health For All Users. High Quality Filter Cartridges: Enjoy Superior Filtration Capabilities With Our High-Quality Cartridges, Designed To Keep Your Pool Crystal Clear. Recommended Cleaning Frequency: For Optimal Performance, Clean Your Filter Once A Week And Deep Clean Once A Month. Environmentally Friendly Elastic Sponge: Made With Eco-Conscious Materials, Our Sponge Filters Promote Sustainability While Maintaining Efficiency. Maintain your pool's pristine condition effortlessly with our swimming pool filter cotton. Ideal for those seeking a blend of efficiency and eco-friendliness, this filter is your ally in keeping water crystal clear.