This sleek new window features the proven and reliable technology of all our Internorm windows. It is characterized by the best thermal insulation and sound reduction values, as well as all round bonding of the glass pane with the window sash. KF 310 is available in a large selection of colours, handles and glazing, as well as a balcony and patio door and now also as a French balcony.

Thermal insulation: U_w as low as 0,69 W/m²K
Sound protection: up to 45 dB
Security: RC1N, RC2
Locking: concealed