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57 Series Non-Tilt Balance, 37", 40 lb., with Attached Ends

Part Number: 57S100-37S40 Price: $127.50
Commercial Window Balance for Traco 650 Series Single Hung Window and Double hung windows and other Aluminum windows companies.

3/4 x 1-1/4 Channel Single Spring, Single Hook

Tube Length: 37 inches
Weight: 40 pounds
Markings: KB

57-37S40 Double Spring (37 Length & 40 Weight - metal tube is 37")
Commercial Window Balance for Traco 650 Series Single Hung Window and Double hung windows and other Aluminum windows companies.<br><br>3/4 x 1-1/4 Channel Single Spring, Single Hook<br><br>Tube Length: 37 inches<br>Weight: 40 pounds<br>Markings: KB<br><br>57-37S40 Double Spring (37 Length &amp; 40 Weight - metal tube is 37")