8 lb Series 150 Coil Balance

Product Code: S150-8

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 8 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.
  • 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 balance This discussion includes image(s). 6 Sep 26, 2019
Coil balance This discussion includes image(s). 4 Jun 3, 2019
balance coilThis discussion includes image(s). 2 Mar 27, 2019
15-141 SpringsThis discussion includes image(s). 2 Oct 20, 2018
Pivot shoe and coil balanceThis discussion includes image(s). 2 May 21, 2018
Weathercraft coil sash This discussion includes image(s). 4 Nov 28, 2017
Need help to replace the broken coil blance springThis discussion includes image(s). 2 Sep 14, 2017
s150 - coil balance spring #840 - with loop at bottomThis discussion includes image(s). 3 Sep 4, 2015
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