Key Features Genuine Replacement Foams Fits SuperFish Eco-Flow 120 Filter. Easy to Replace Contains 3 foams Blue Coarse Foam, Yellow Medium Foam, Black Fine Foam Also includes filter wadding. Replacement filter foams for SuperFish Eco Flow 120 The set of foams consists of 3 different sponges as well as wadding Contained in the set is a Blue Coarse, Yellow Medium and Black Fine sponges that help to clean the water as it passes through Also provided in the set is a fine filter wadding that adds another level of cleaning and helps to provide a complete filtration system inside the Eco Flow 120 It is recommended that the foams are replaced every 2-3 months for the most effective filtration Specifications Model : Replacement Foams 120 Eco Flow Filter Includes: 1 x Coarse, 1 x Medium , 1 x Fine Foam + 1 x Wadding