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 8-40, 8-4, or 8-D

Appx. carry weight range for: D / 40:   23 – 28 lb (≈ 10.4 – 12.7 kg)

Part #: 17B8-40
SKU: 5046432
Brand: FRAMELESS HARDWARE