record CLEAN K1-A na – Non-hermetically sealing 

If no hermetic separation required, the doors can also be supplied with a slightly modified door leaf. Due to the elimination of the hermetic closed position, optical changes occur to the lower leaf guides and the path of the door. Otherwise, the visible similarity to the K1 / K2 series remains, enabling homogenous designs to be implemented.

record CLEAN K1-A na
record CLEAN K1 na record CLEAN K2-A na

The “na“ model of the K system is based upon the one-winged (K1-A ST) and two-winged (K2-A ST) door models and is not hermetically sealing.