- Fully sealed construction, weight range: 7.25 - 10kg
- Oil tempered carbon steel torsion spring and zinc plated variable pitch spiral
- Steel zinc diecast fixing plug and tough ABS polymer outer casing
The Whitco Window Spiral Balance 460 suits timber or aluminium double-hung windows and is supplied without the foot attached, so the matching foot is ordered separately. Its spring and spiral work together for smooth, balanced sash movement, with tension adjustable to suit the application. Shock-absorbing stops are built in.