ERA F Series Tensioned Sash Balance

The F Series Sash Balances from Era combine stainless steel spiral rod torsion and tension springs to produce a complete balancing device capable of maintaining the equilibrium of a sash window at any point in the travel of the sash. The F series of balances is designed to suit a sash weight range of 14lbs to 21.9lbs (6.3kg to 9.9kg). All Era sash balances have semi flexible tubes which enable ease of use during installation or replacement and the F Series balances are supplied pre-tensioned for maximum convenience, therefore they should be the correct weight for the sash. They are sold as a pair and supplied complete with 10 year manufacturer's guarantee.