Deep Tuttle Box Waterat

Deep Tuttle Box Waterat


Deep Tuttle Fin Boxes for use in foil boards like GoFoil

Insert this Deep Tuttle Box for use in your paddlboard, SUP, Surfboard, Windsurf board, kiteboard and more. Ideal for mounting a hydrofoil into your existing board or use while building a custom foil board. Made with carbon and high density foam. Check out the below information for use in Gofoils:

How Do I Put the Foil Into the Tuttle Box?

  1. Stand on the bottom of your board while wearing socks or barefoot, be careful to not scratch up your board, and stand one foot just in front of the Tuttle box.
  2. Place Tuttle head into the tuttle box evenly and start rocking the mast/strut forward and backward while putting steady pressure down onto the board. Grab onto the Fuselage of the foil while doing this. The steady rocking back and forth will slowly seat the tuttle base into the box.
  3. Lean board over to put in the bolts and tighten them.
  4. Turn board back upside down again and retry rocking and pushing mast into the board again to get rid of any looseness. Re-tighten bolts again. repeat until you are satisfied the Tuttle base is as tight as possible.

DO NOT hit the foil base into the board with a Rubber Mallet or anything else.

If you cannot get the Tuttle Base into the Tuttle Box, sand the sides of the Tuttle base not the Tuttle box until she fits inside the box. Easiest to do this with a sander. Check video below for sanding the base.

Tuttle Box Placement

Rough Guidelines to Tuttle box placements for different length boards: The measurement is made from the back opening of the Tuttle box to the tail of the board.

Board Length Distance from tail of board
5’0″ to 5’9″ 8” – 12”
5’10” to 6’6” 10”- 15”
6’7” to 7’4” 16”-20”
7’5” to 8’6” 18” -22”
8’7” to 9’6” 23” to 28”

Box placement further forward creates greater lift and earlier planing.

Box further back usually helps the boards turn ability.

Lightweight riders need less lift and heavy riders need more lift so consider the riders size when choosing box placement.

Box Thickness

4", 4.75", 5.75"