Bestway Flowclear Sand Filter 7571LThe Continuous Filtration Of The Swimming Pool Water Not Only Ensures The General Comfort Of Use, But Also A Reasonable Level Of Hygiene. Above All, The Use Of Filter Devices Guarantees The Safety And Fun Of Playing Or Resting In A Portable Pool. It Also Allows For Longer Use Of The Water, Reducing The Frequency Of Water Changes And Thus Reducing The Cost And Time To Replenish The Pool. The Pump With Sand Filter Is Intended For Expander And Frame