By using the filter ball, you can greatly improve the water quality and health status of the swimming pool. If you are looking for a practical and versatile swimming pool filter ball, you should choose our new generation of filter ball, which is lighter, more efficient, excellent in filtration performance and environmental protection. The filter ball has extremely high adsorption capacity and is suitable for all sand filter systems! The filter ball is light and easy to handle Replacement instructions: 300g instead of 10kg of filter sand 500g instead of 18kg of filter sand 700g instead of 25kg of filter sand 1000g replace 36kg of filter sand 1200g replaces 43kg of filter sand 1400g replaces 50kg of filter sand Material: polyethylene Diameter: 5cm Product packaging: 1400g filter ball Note: If the outlet diameter is larger than the filter ball. It is recommended to use the ball with the mesh bag to avoid clogging the filter. Product features: Filters suspended particles - High adsorption