I have a racor 120R-RAC-01 with the S3240 filter element. I do have a replacement filter on board in case it needs servicing away from port, but I do not carry a spare bowl. I know the easiest answer will be, well, why don't you just carry a spare bowl. But I'm curious to know if there is a filter cartridge with a seal bottom that i can have as a get me home fix. I tried to search the net but did not came up with anything. Thanks