Selecto 101-300 Compatible Filter for MF620, MF5/620 and MF 620-2P and MF5/620-2P systems, KleenWater KWBGS45210 Fountain Beverage Replacement Cartridge This Selecto Scientific compatible carbon block cartridge is 4.5" X 20" (101-300 and 101-298) Provides flow rates up to 7 gallons per minute Free Fast Shipping - change cartridges every 6 months or upon substantial pressure drop Ideal for Fountain Beverage Machine Filtration Removes Taste/Odor/Chlorine & reduces chloramine