The sturdy design of the RVF-10 makes it ideal for exterior pre-tank filtration of water for the RV. This unit provides better-tasting water for drinking and cooking, and its sediment filtration ability ensures a cleaner storage tank, too. The slim design and convenient hose fitting kit make it simple to install and easy to store. Includes one NCP-10 filter cartridge, hose fittings, and a 12S flexible hose. NCP-10 REPLACEMENT CARTRIDGES - 2 PACK