The next generation  of closure solution

Outside setting

Simple sill - version 1

This concept permits very simple sill. We can choice this option for common use, other sill are designed for ultimate robustness of for flood fighting.

Technical result

1. Sober with good looking effect sill shape 
2. Very cheap sill
3. Easy wheel passage
4. Easy cleaning
5. Simple foreign body exclusion
6. Natural water line limit
7. Deleting of weather bar