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Everyone knows I am a Merc guy, so take that into consideration, but for my money the old style Mercury "bayonet" fittings are still the best you can use. They are little larger in size and price, but are absolutely leak proof and rock solid secure, and can be used with any engine brand at the tank. I am talking about the original aluminum fittings, not the cheaper plastic knockoffs. Avoid those.

You can see one here:

http://smg.photobucket.com/user/lgolt...4710541322