Product Description:1 Pcs For Bestway Replacement Filter Cartridge Swimming Pool Pump Easy Set UpFeature:100% brand new and high qualityConvenient to use, hand held tools.Material: siliconeThis Bestway filter cartridge will fit 300/330 gal/hr filter pump systems. Filter Cartridges fit inside your Filter Pump and catch dirt as it passes through the system. Bestway suggests that you replace the Filter Cartridge every two weeks in the summer to keep the swimming water clean.Bestway Filter CartridgeDesigned To Fit Bestway Filter Pumps 300/330Cartridges Should Be Replaced Regularly To Maintain The Efficiency Of Your FilterDimensions (cm Approx): H 9 D 8Notice:Please allow 1-2cm error due to manual measurement.Pls make sure you do not mind before you bid.The colors may have different as the difference display,pls understand.If you have any problems, please contact us before open the dispute or give negative feedback,we will try our best to help you,thank you!Package Include:1PC Filter core