["brand new and high quality.\nFeature:\nMade of high quality sponge material, durable and practical to use.\nEasy to use reusable foam filters that can be used several times over, so you can save money and enjoy your hot tub/spa.\nIt is very important that your water is not over chlorinated as the foam will decompose, for always remove filter when using a chlorine shock treatment (not necessary to remove when using a non chlorine or oxy shock treatment). \nFilter works perfectly when correct chemical levels are maintained in your tub.\nDiscoloration of the filter will occur this is normal.\nPlease use a warm soapy water mixture to clean out the foam filter which will then need to be thoroughly rinsed out after with clean water to remove all the suds clean filters more often for longer life.\nWarning Tape only, other accessories demo in the picture is not included!\n\nSpecifications:\nMaterial: Sponge\nOuter Diameter: 10.4cm/4.09in\nInner Diameter: 5.2cm/2.05in\nHeight: 8cm/3.15in\nColor: Green\nQuantity: 4 Pcs\n\nNote:\nNo retail package.\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Includes:\n4 x Foam Filters (Filter housing not included)"]