Follow this easy step by step guide to make sure the windows are installed correctly.Follow this easy step by step guide to make sure the windows are installed correctly.

| YFB 50 |
| Cavity Size Standard reveal |
| Profile Type Kommerling |

| YFB50C |
| Cavity Size Check reveal |
| Profile Type Kommerling, Rehau, Liniar and the majority of other profiles |

| YFB75 |
| Cavity Size Standard reveal |
| Profile Type Kommerling |
The window bracket can fit other profiles.
Samples will be provided.
Adaptations to the window bracket is available to suit any window profile or window/door material.