
Energetically perfect and durable:
the AT4-F series
Completely smooth interior with sealed joints
+ More...
The AT4-F construction kit is the basis for your AL-KO ATEASY® and ATFLEX® air conditioning and ventilation system. AL-KO has set particularly stringent...
Are you interested in the AT4-F series?
Find your contact partner in your region nowCompletely smooth interior with sealed joints
Seamless, overlapping rubber seal
The AT4-F construction kit is the basis for your AL-KO ATEASY® and ATFLEX® air conditioning and ventilation system. AL-KO has set particularly stringent standards in developing the housing. The interior and exterior are fully decoupled and the AT4-F modules in all configurations comply with the T2/TB2 energy standard.