Used to keep the swimming pool clean by releasing copper and other minerals into the swimming pool.The chlorine-free solar shock replacement copper anode is a secret mixture of that kill microorganisms and prevents the growth of metals in the pool.Replacing copper anodes can help you save 80 percent of your chlorine costs.Solar Ionizer replacement basket, that helps to capture copper debris when released from anode during ionizationSuitable for many Solar Pool Ionizer Purifier Chlorine Free Purifiers.Material:Nylon and copper alloycolour:BlueandcopperCopper rod: 105mm long, 18mm diameter weight 228 g (0.5 lb)Spring: stainless steel 316 material, length 125mm, diameter 40mm,Basket: nylon material, length 120mm, diameter 68mmPackage Contents:1 x Filter Screen1 x Copper Anode1 x spring1 x BoltOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.