This is a Series 175 spring for tilt windows. It moderates the operation of your window sash using a specifically calibrated coil spring that allows the window sash to stay open when raised and remain shut when closed.
This is a light force spring. The silver color indicates the strength.
Measures 1/2" thick.
Has a medium tongue, meant to install below a short coil in a coil balance system.
This coil balance spring is sold individually, not in sets.
Can work for either the left or right side of the window interchangeably.
A balance assembly is used on each side of the window sash. To determine how many coils to use per balance assembly, please refer to the chart below.
Good Idea!
Balances are sold individually, however, it is a good idea to replace both window balances at the same time. Pairing a new balance with an old one would cause the new balance to wear out faster.