Hydra Rivestop & Rivepipe.
A complete new system for waterproofing the formwork tieholes. Very simple to use and impossible to fail with the assembly.
Only place the plug into the concrete hole and expand it with the Hydra Riveter.
Use HyDra Rivepipe instead of tradionell plastic distance tubes and cones and you have a clean concrete hole without and plastic left in the concrete.
Then insert the HyDra Rivestop into the hole and you have a waterproof tiehole.