HQRP 2-Pack Square Foam Aquarium Filter for Eshopps AEO19070 Replacement fits Eshopps RS-300 / RS-200 Reef Sump System, Zoo Med 501 External Filter, Large Coaster HQRP&reg; 2-pack Foam Aquarium Filter Replacement + HQRPreg; Coaster; Compatible with Eshopps AEO19070 Filter Replacement; Dimensiones: 13 1/2"x 4"x 2 1/4"; The Foam Filter removes dirt and floating debris from your terrarium or aquarium; Can be rinsed and reused; 2 weeks DOA replacement warranty!