The COPAL System provides small windows for teller desk or box office applications.

The standard design comprises the fixed and sliding parts. The arrangement of the fixed and shifting pieces can be:

vertical (the upper panel fixed, sliding piece opens up),
or horizontal (the side panel fixed, the other section sliding sidewards).

After a lock is installed, the window can be locked closed or open at many heights.

A window with COUNTERWEIGHT is available:

easy to move,
fixed at any height.
The 4 - 18 mm thick filling may be fitted. The filling materials include ordinary or reinforced glass, anti-burglar glass,
or laminated panels.