ᐅ Central vacuum system: Can anyone identify the brand?

Hello everyone,

I have a photo of a central vacuum system, but I can’t tell which brand it is. Maybe someone familiar with the brands can guess which one it might be.

I want to start looking for new inlet valves since the previous owner painted them badly. They probably need to be from the same manufacturer.

Thanks.

Ask the previous owner? 🙂

Is there no type designation inside the boxes (on the inside of the lid)?