The incredible Mr. Funnel. This is a MUST HAVE for anyone who stores fuels. Just pour the fuel through Mr. Funnel and it instantly removes water and debris. There is nothing else like it on the market. Just pour the contaminated fuel into the filter and the water-free fuel flows through. Any water that was in the fuel will stay in the funnel - just dump it out when you"ve filled your appliance. To clean, just turn it upside down and whack it onto a hard surface. Nothing to replace, ever. Model F1c filters up to 2.5gpm, F3c up to 3.9gpm, F8C up to 5gpm and F15c up to 15gpm.