This Media Bundle includes: 2 pieces Bio-Foam*, 1 piece Bio-Foam+*, 2 pieces Bio-Foam Max*, 6 pieces Ammonia Remover, 6 pieces Phosphate Remover, 6 pieces Nitrite Remover, a MarineAndReef Towel, AND Inland Seas Silicone Grease. The 07 series Fluval Filter marks the 7th incarnation in 4 decades of Fluval's top selling canister filter family worldwide. Not only does the latest generation incorporate the power and reliability you've come to expect from the leader in aquatic filtration, but it also features several new performance upgrades that make it up to 25% quieter and more robust, energy-efficient, flexible and easier to use than ever before. The Fluval Manual recommends you replace the Bio-Foam, Bio-Foam+, and Bio-Foam Max every six months. The Ammonia, Phosphate & Nitrite Pads should be replaced monthly. Use the Silicone Grease to lubricate the Motor Head Gasket, Impeller Cover and AquaStop O-ring Gaskets. The Fluval Manual recommends you clean and lubricate these parts every six months. * Bio-Foam Value Pack. The MarineAndReef Aquarium Cleaning Towel is a durable, lint-free microfiber towel. 19" X 15".