Pond Filter Foam Layers Fine, Medium & Coarse Foams Included 1x Fine (green), 1x Coarse (black) & 1x Medium (blue) For Use in Gravity-fed Flow-through Filters Can be cut to size, and amended for pipework Size Name:17Inchx 11Inch You will receive a set of profiled three-layer filter foams, 1x course (Black) 1x medium (blue) 1x fine (green) for use in gravity-fed flow-through filters.
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