without tool, the filter bag ' s rubber sealing rings ensures a watertight fit, leaks and maintaining optimal vacuum Constructed from cotton, this filter bag features a robust multilayer design that withstands wear and pressure while providing excellent filtration efficiency Perfect for routine cleaning home pools, public facilities like hotels and gyms, and preparing for outdoor parties, ensuring your pool is always ready for use Ideal for private pool owners, professional pool maintenance companies, and swimming enthusiasts who prioritize clean and safe swimming environments The multilayer filter bag filtration, effectively fine debris and impurities to ensures clear pool water, suitable for popular models