Avg. Dispatch Time :  9 Day
Price is exclusive of Taxes
The Whitco Spiral Balances have been designed to suit both aluminium and timber frame double hung windows. This item is designed to assist in the smooth sliding operation of both top and bottom window panels featuring narrow, fully sealed variable pitch spiral and torsion spring balance and foot systems.

Features of the Spiral Sash Window Balance Number 520
  • Fully sealed construction
  • Oil tempered carbon steel torsion spring
  • Zinc plated variable pitch spiral
  • Metal zinc die cast fixing plug
  • Tough ABS polymer outer casing available in Black
  • Corrosion resistant stainless steel sash foot plate
  • Adjustable spring tension to suit application
  • Shock absorbing stops available
  • Range of feet available
  • Supplied as individual balances not sets
  • Tension key required for adjustable foot version
Standard foot

Attached to spiral rod, includes accessory kit


Available in Black tube colour

Recommended Sash Weights

Weight Range7.25 to 10 Kg
Body Length800mm
Closed Length826mm
Extended Length1575mm

It is recommended that spiral balances are supported in a 15mm x 15mm rebate.
More Information
Model No LW615202117
EAN 9311847721241
Warranty / Guarantee Whitco 10YR Mechanical
Tested to Standards Tested to NZ Standard
Residential Yes