SLIDING SASH SPIRAL BALANCE
Description
The SLIDING SASH SPIRAL BALANCE window or tensioned spring provides the mechanism of lift to the system. Predominantly used in new build construction, it provides a cost effective solution to this style whilst retaining all the unique features of a sash window.
![SLIDING-SASH-SPIRAL-BALANCE](https://bako-okna.pl/wp-content/uploads/2016/12/SLIDING-SASH-SPIRAL-BALANCE.jpg)