Caldwell Series 40 Spiromite 3/8" Spiral Window Balance

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  • The Series 40 is a 3/8" Spiral window balance for non-tilt applications
  • 3/8" diameter
  • This balance is ordered based on the tube length and coupling color. When taking measurements, measure only the metal tube. If the balance is not available, measure the height of the visible glass. This will be your tube length. Then remove and weigh your window sash on a bathroom scale and select your appropriate weight range. These measurements are crucial to the performance of the balance. Check out our guide on measuring spiral window balances for more info on how to measure your balances properly.
  • Weight capacities are listed per pair of balances in pounds
  • For optimal performance, we recommend replacing both balances at the same time.
  • Uses Spirex and Spiro-mite Tensioning Tool
  • Select your options to see final price

To learn more about our Series 40 Spiral Window Balances watch the video below:

*Red coupling color may appear orange due to fading.

If the item you wish to purchase is out of stock or if you have questions about what part you need please Contact Us or Chat with us directly before you place your order.
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  • $4.38

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