Whitco Spiral Balance Alum. Window # 640 – No feet -Sold Singly

Spiral Balance, Aluminium Window – # 640 1003C 1930E 978L

Narrow and fully sealed variable pitch spiral and torsion spring balance and foot system for Timber or Aluminium Double Hung windows.

Balance Number: 640

Closed dimension: 978mm (black tube length) – requires no more than 7 tension turns

Used in conjunction with Adjustable or TFD foot

Sold singly (ADD number required)

Foot sold separately

It is recommended that spiral balances are supported in a 15mm x 15mm rebate