Description
The 37″ Spring Window Sash Balance – 14–18 lb Weight Range Replacement Balance is designed to restore smooth and reliable operation for single-hung and double-hung window systems. This spring sash balance helps counterbalance the weight of the window sash, allowing the window to open and close smoothly while remaining securely positioned when raised.
Sold by: Each
Color: Mill
Sash Weight (Lbs.): 14–18
Channel Length: 37″
Number Stamped in Balance: 3620 or 36B
Part Number: SWH-3620
Constructed with a durable mill finish, this replacement balance is built for dependable performance in residential and commercial window applications. With a 37-inch channel length and a sash weight capacity of 14–18 lbs, it is designed to replace balances stamped 3620 or 36B, ensuring compatibility with many standard window balance assemblies.
All listed sash weights are based on two balances supporting one moveable sash. For optimal performance and proper window alignment, it is recommended that sash balances be replaced in pairs. Mixing old and new balances can create uneven spring tension, which may cause the window to bind in its channels and become difficult to operate.
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