B-27 Bilge Cowl Vent Size

[anoser]

Anyone happen to know offhand the size of the Low Profile cowl vents going to the Bilge through the Lazerette of the B-27.

I forgot to take measurements and really want to get some on order (one is missing).

The nicro's come in 3" and 4" and I'm assuming the right one will easily replace the stock one's.

Much Appreciated if somebody happens to know.

[FloridaWriter]

It is almost certainly 3 inches.