Josko combines four benefits in the Safir uPVC/aluminium window: Even, slim, warm and robust. The revolutionary uPVC/aluminium window also lets more light in thanks to its slimline frame.
Incredible value heat insulation
UW 0.67 W/m2K
System strength
100 mm
Unique fitting evenly with the glass
Rebated by only 3 mm between glass and frame on the outside
Even fitting
Even to the frame externally and internally
Fibreglass window sash
More security, less distortion and lighter
Basic burglary protection
Standard mushroom-pin lock (optional RC2)
Fitting
Fully concealed with rotary limiter as standard