Series 305 Spiral Balance

Series 305 Spiral Balance. This system is used in non-tilt windows. The tube measures 3/8" in diameter and houses an internal spiral rod with a 15-023 shoe attached. Spiral window balances come fully lubricated and ready to be charged.
Series 305 Spiral Balance
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15" 16" 17" 18" 19"
20" 21" 22" 23" 24"
25" 26" 27" 28" 29"
30" 31" 32" 33"
click here for lengths over 33"