where can i get and do i need a in line fuel filter. i have the mercury water seperators, but is that enough.

The Merc canister does a decent job on most engines, there are other after market ones that will give more flow. Are you having a problem?

Phil

i am not having problems yet but i would like to protect my investment if it is required.

Racor spin on does the job. It filters 10 microns whereas the Merc does 70. Available all over.