F4 Foils top plate adapter. With this F4 Foils top plate adapter you can easily convert your F4 Foils aluminum mast with deep tuttle. This adapter is made of high quality material. The F4 Foils masts fit very tightly so there is no play.

Every F4 Foil mast can be used in combination with this adapter. The adapter can also be easily removed, so you can also use the F4 Foils mast again with a deep tuttle adapter.