The KF 310 is a prime example of the reliable technology found in all Internorm windows.
It has the best thermal insulation and sound reduction values, and is available in a large variety of colours, handles and glazing. It can be used for balconies, patio doors and now also French balconies.
Thermal Insulation: UW as low as 0.69 W/(m2k)
Sound Reduction: Up to 45 dB
Security: RC1N, RC2
Construction Depth: 74mm
View Windows Product Entry