Yes, Raycor makes clear bowl filters for gasoline.
Our kids sailing prgram has several small boats with outboards and we installed them on all of them.
It must be held upright somehow, A better description of your proposed installation will get a better answer than that.
I would not get the Walmart one I'm sure it is aluminum or some chaep alloy and is going to corode. WM has a stainless steel one that works well in saltwater.
We had an issue with one where the seam of the canister rusted and started leaking then when I went to unscrew it it came apart I was not sure it was going to be able to get the rest off but I managed to.
I bought one for my boat last year when they were on sale but have not yeat installed it on my boat. I seem to spend all my time working on the club boats and ignoring mine.
Heard last week that the ethonal shrinks the plastic bowls on the Racor ones and they fall off. Don't know that for a fact just what I was told.
If they shrink, it must take time. I have had some in service for 25 years. However, the smaller sizes can have corrosion issues (spin-on center unit) if exposed like that. Replace the element every 5 years and you will be fine.
As for the suction issue, the smallest sizes are for 100hp outboards; a 6hp will not create suction for a LONG time. However, if the element sees water it will swell and cut the flow. This is intentional, to prevent engine damage. Carry a spare.
I don't believe any of the Raycor stuff is SS; aluminum and painted CS. Tip: ALWAYS remove the filter before you put it on the boat, and then re-tighten. The factory generally tightens them WAY too much, and it is easy to break them later, once they have aged.
The difficulty with a plain spin-on (original post) is that you cannot drain the water... So what good is that? You need a drain, or just rely on the factory filter.
