- Narrow, fully sealed construction
- Oil tempered carbon steel torsion spring
- Zinc plated variable pitch spiral
The Whitco Window Spiral Balance 480 suits timber or aluminium double-hung windows in the 7.25-10kg sash weight range and is supplied with the standard foot attached. Its fully sealed construction pairs an oil-tempered carbon steel torsion spring with a zinc-plated variable-pitch spiral for smooth, balanced sash movement, with tension adjustable to suit the application.
Features:
- Suits 7.25-10kg sash weight, timber or aluminium double-hung windows
- Fully sealed construction with oil-tempered carbon steel torsion spring
- Zinc-plated variable-pitch spiral with zinc diecast fixing plug
- Tough ABS polymer outer casing
- Adjustable spring tension with shock-absorbing stops