841 Series

The 841 series is an inverted B&T system utilizing our T-lock system. This smaller version B&T allows for use with a traditional 3/8" jamb pocket. Utilizing a rack in sash installation, this system is ideal for new construction and replacement windows.

product highlights

  • Recommended for:  aluminum, composite, vinyl, and wood
  • AAMA 902 Certified
  • Full travel up to 36 lbs.
  • Side locking shoe only
  • Inverted mount tilt balance for 1" X 3/8" pocket
  • Can accommodate weights from 3 lbs. to 36lbs.
  • Balance travels with the sash so that it is not seen in the window
  • No balance covers needed
  • Easy installation and removal with t-lock. Inverted Mount


Attribute Value
Weight Capacity 5 - 35 lbs (50 lbs Limited Travel)
Length Range 12" - 45"