2000g Bio Ceramic Rings in 4 Media Bags for Aquarium Fish Canister Filter

2000g Bio Ceramic Rings in 4 Media Bags for Aquarium Fish Canister Filter #153Ring size: 1/2" x 1/2" Media bag size: 8.0" x 5.5" Package included: 2000g of ceramic rings in 4 filter media bags, 500g..