Series 306 Spiral Balance

The Series 306 Spiral Balance is affixed with a 15-066 metal shoe. This Series is used on non-tilt windows. The tube has a 3/8" diameter. Spiral balances come fully lubricated and ready to be charged.
Series 306 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"