D
Doug Washburn
i am having trouble finding a replacement filter cartridge for my fresh water system. the existing one has absolutely no identifying words or numbers on it. it's the white, 10-12" long x 2" diameter cylinder type. there is a flat black washer fitted in the top and an intake grid in the bottom. i tried a substitute that fit the size criteria but it seemed to have the effect of belaboring my water pump. so, assuming it didn't have the proper flow rate, i removed it before i added a pump to my list of needs. any suggestions on where to find these cartridges? i looked in my west marine catalog and nothing there looked right, either.