TLPA33mm rail profile support. The profile support is the part that sits on the rail to hold the 2cm porcelain slabs in position. They have a foot that inserts into the channel on the rail and with a simple twist, they lock in to place. Raising the tile by 3mm creates a gap between the rail and the tile, allowing water to pass through freely, prevent dirt trapping and water puddling, preventing risk of damage from the freeze/ thaw process. The holes through the support also allow the tiles to be bonded directly to the rial when using Nicobond Terra Level MS Adhesive, for ultimate strength.