Spiral Balance, Aluminium Window - # 510 Weight Range 2 (7.5-10kg)
Narrow and fully sealed variable pitch spiral and torsion spring balance and foot system for Timber or Aluminium Double Hung windows.
Balance Number: 510
Closed dimensions 902mm (black tube length) - requires no more than 7 tension turns
Sold Singularly (ADD number required)
Used in conjunction with Adjustable or TFD foot
Foot sold separately
It is recommended that spiral balances are supported in a 15mm x 15mm rebate