Where can I find Insect screen in Römerberg?

Insect screen can also be found in these cities:

Bruchsal Eppelheim Hambrücken Heidelberg Hockenheim Ludwigshafen am Rhein Mannheim Neustadt an der Weinstraße Nußloch Reilingen Sandhausen Schifferstadt Speyer Waghäusel Wiesloch

You can also find this in Römerberg:

Windows Awnings Interior Doors Wooden Frame Lime Clamps Synthetic Resin Varnish Light Well Furniture Panels