4 lb Series 150 Coil Balance

Product Code: S150-4

Product Description
This is a Series 150 stainless steel spring for tilt windows. It moderates the operation of your window sash using a specifically calibrated coil spring that allows the window to stay open when raised and remain shut when closed.
  • Individually, this coil balance can hold 4 pounds. This is added together with the other coils to support the whole weight of the sash.
  • The weight you need should be indicated as a stamp or imprint on your old spring.
  • Measures 1/2" thick.
  • Designed to work with the 15-140 pivot shoe (sold separately).
  • This coil balance spring is sold individually, not in sets.
  • Can work for either the left or right side of the window interchangeably.
  • Coil balances are also known as constant force window balances.
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.
Customer Questions & Answers
Discussion # Of Replies Last Post Date
Coil banalceThis discussion includes image(s). 4 Oct 17, 2020
Part for older double hung windowThis discussion includes image(s). 4 May 19, 2020
Coil BalancersThis discussion includes image(s). 3 Feb 25, 2020
Window Coil Balance Parts IDThis discussion includes image(s). 5 Dec 9, 2019
Coil balance This discussion includes image(s). 6 Sep 26, 2019
Double coil spring balancerThis discussion includes image(s). 2 Jun 1, 2018
hooking 2 springs together 2 Nov 9, 2017
Weathercraft window balance partsThis discussion includes image(s). 2 Nov 2, 2017
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