{"product_id":"penn-plax-cascade-500-350-gph-canister-filter-aquarium-bio-sponge-replacement-2-pack-size-cascade-500-350-replacement-bio-sponge-pack-of-2","title":"Penn-Plax Cascade 500\/350 GPH Canister Filter Aquarium Bio Sponge Replacement, 2 Pack - size: Cascade 500\/350 Replacement Bio-Sponge (Pack of 2)","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe information below is per-pack only\u003c\/li\u003e\n\u003cli\u003eKeep your water clean and clear with the replacement bio sponge for use in the Cascade 500 Model CCF1UL and Cascade Elite canister filter models.\u003c\/li\u003e\n\u003cli\u003eThe bio sponge filter removes ammonia and nitrites from your aquarium tank keeping your aquarium clean; healthy; and odor free.\u003c\/li\u003e\n\u003cli\u003ePerfectly cut to fit into the Cascade 500 filter tray without any gaps which could allow pollutants to re-enter the water.\u003c\/li\u003e\n\u003cli\u003eFilter sponge optimizes the colonization of beneficial which prevents the water from becoming cloudy and harming fish.\u003c\/li\u003e\n\u003cli\u003eGenuine Penn Plax replacement cartridge for Cascade 500 models. When used together; the filter and bio sponge provide maximum protection against water pollutants.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs Discontinued By Manufacturer ‏:\u003c\/strong\u003e ‎ No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions ‏:\u003c\/strong\u003e ‎ 7.5 x 1.5 x 5.5 inches; 2.12 ounces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem model number ‏:\u003c\/strong\u003e ‎ CCF129\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDate First Available ‏:\u003c\/strong\u003e ‎ January 23, 2026\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer ‏:\u003c\/strong\u003e ‎ Penn Plax\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASIN ‏:\u003c\/strong\u003e ‎ B0D86YBB9T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest Sellers Rank:\u003c\/strong\u003e #21,248 in Pet Supplies (See Top 100 in Pet Supplies)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomer Reviews:\u003c\/strong\u003e 4.7 \n4.7 out of 5 stars\n   (4,424)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Penn-Plax","offers":[{"title":"Default Title","offer_id":52576522764569,"sku":"B0D86YBB9T-size-cascade-500-350-replacement-bio-sponge-pack-of-2","price":21.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1010\/1365\/1737\/files\/51PLRxhwKDL.jpg?v=1781499792","url":"https:\/\/aquadrops.us\/products\/penn-plax-cascade-500-350-gph-canister-filter-aquarium-bio-sponge-replacement-2-pack-size-cascade-500-350-replacement-bio-sponge-pack-of-2","provider":"Aqua Drops","version":"1.0","type":"link"}