Designed for sideload sash applications, this block and tackle balance is ideal for both residential and commercial windows. AAMA verified with a Class 2 rating, it meets the North American Fenestration Standard (NAFS) for quality and performance. Engineered for easy installation, it allows quick sash insertion and removal. Note: Sold per piece.

The 9" channel length can be identified by ID stamps such as 8-20, 8-2, or 8-B

Appx. carry weight range for: B / 20:   12 – 16 lb (≈ 5.4 – 7.3 kg)

Part #: 17B8-20
SKU: 5046379
Brand: FRAMELESS HARDWARE