{"product_id":"2-x-compatible-fluval-u4-polycarbon-filter-cartridges","title":"2 x Compatible Fluval U4 Polycarbon Filter Cartridges","description":"\u003cp\u003eYou are buying a pack of 2 compatible polycarbon filter cartridges to fit the Fluval U4 internal filter.\u003c\/p\u003e\u003cp\u003eThese filter cartridges have a polyester side for mechanical filtration, and a carbon impregnated side for chemical filtration of the aquarium water.\u003c\/p\u003e\u003cp\u003eRegular replacement of the filter cartridges in your filter will ensure that your filter is running at its best.\u003c\/p\u003e","brand":"Fluval U4","offers":[{"title":"Default Title","offer_id":57689791758661,"sku":"2133","price":3.49,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1043\/1551\/9301\/files\/fluval_u4_polycarbon_cartridge_2pack.jpg?v=1776198655","url":"https:\/\/finest-filters.co.uk\/products\/2-x-compatible-fluval-u4-polycarbon-filter-cartridges","provider":"Finest Filters","version":"1.0","type":"link"}