7 lb Series 150 Coil Balance

Product Code: S150-7

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 7 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
constant force window balance spring replacementsThis discussion includes image(s). 4 Apr 28, 2020
Window Coil replacement part, on the coil it has the number 7, these are for double hung windows.This discussion includes image(s). 4 Apr 9, 2020
pivot bar in window sashThis discussion includes image(s). 6 Feb 27, 2020
Coil BalancersThis discussion includes image(s). 3 Feb 25, 2020
Coil balance This discussion includes image(s). 6 Sep 26, 2019
Alcoa 900-19265 Pivot lock shoe coil spring This discussion includes image(s). 4 Jun 19, 2018
Looking for coil balance replacement parts for a vinyl double hung windowThis discussion includes image(s). 3 Jun 15, 2018
spring for 32 x 16.5 windowThis discussion includes image(s). 2 May 28, 2018
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