General description vhbw filter balls offer a sustainable and efficient alternative to traditional sand for your pool filter system. These innovative filter balls provide impressive filtration performance, capturing particles as small as 1.5 microns, significantly improving pool maintenance compared to standard sand filters, which only filter down to approximately 40 microns. Each 500 g pack of filter balls replaces 17.5 kg of filter sand, making them a lightweight and eco-friendly choice. Technical specifications Diameter: 5 cm Material: polyethylene Colour: white Weight per package: 500 g Replacement cycle: every 2 - 5 years Filter performance: up to 1.5 microns Reusable and washable by hand or in the washing machine Non-toxic and recyclable Compatibility and accessories Compatible with sand filter systems with a filtration rate of 20-40 m³/h Compatible brands: Arebos, AstralPool, Bestway, Hayward, Intex, Jandy, Kesser, Miganeo, Monzana, Pentair, Sta-Rite, Steinbach, Swim & Fun,