The slimline Culligan RV-800 is a popular RV inline water filter system that easily fits on all standard camper water hoses. It also has a long cartridge life – cleaning up to 2,000 gallons – giving you plenty of scope to plan some awesome long road trips. So, how well does it clean? Pretty well, we’d say. Along with its carbon filter to deal with the particles, sediment and other contaminants, it also has a built-in bacteriostatic filter to get to grips with the real water-borne nasty sediment. What we really noticed about the RV-800 is how effective it is in reducing bad taste in the water, including chlorine.