Series 900 Spiral Balance

This is the SWISCO Series 900 Spiral Balance for tilt-in windows. When determining length, only measure the metal tube.

The tube measures 3/8" in diameter and houses an internal spiral rod with double pins to catch the pivot shoe. Spiral window balances come fully lubricated and ready to be charged.
Series 900 Spiral Balance
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12" 13" 14" 15" 16"
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27" 28" 29" 30" 31"
32" 33" 34" 35" 36"
37"
click here for lengths over 37"