Cowl vents on 8.5M S-2

[Frogwatch]

While crossing from West Palm to West End, one of my flexible plastic cowl vents on top of the cabin somehow came loose and went overboard in heavy chop. Does anybody know who made these? Does anybody know if most 3" vents will fit these threads or do I have to install a new female threaded piece in the hole?

For those having prop problems (achieving speed), I suggest PerfectPitch (google them). They will size the 2 bladed prop for your hull and engine. You may even get a larger prop by using a shaft extension and get even more thrust. My 13 hp Yanmar 2GM will push my 8.5m at 6.5 kts even in chop.

[Hesper]

I don't know who made the originals, but I'd be very surprised if a standard 3" replacement didn't fit.