Replacement Pond Filter Foam Packs 17" x 11"; 25" 18"; 36" 24"; 42" 21" All Solutions (36" 24")

Amazon

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

Amazon Marketplace

Universal Garden Fish Pond Replacement Filter Foams Available in four sizes: 17"x 11", 25" x 18", 36" x 24" and 42" x 21" Foams can be cut to size and amended for pipework if required