APEX®

An extended travel Block & Tackle Balance for sideload applications: Caldwell’s APEX® balance is available with multiple end guide configurations, for different jamb sizes.
APEX® succeeds AAMA Class 2 with a weight capacity of 2-53 lbs.

Product Features

  • Extended travel allowing for egress windows
  • Caldwell’s Music Wire Springs offer more consistent and dependable output
  • Remarkably consistent & smooth operation
    • Independently rotating pulley wheels
    • Stronger hemmed channel edges
    • Parked mounting hook remains centred
  • Elongated bottom guides provide design and application flexibility
  • End Guide Configurations to easily fit into your jambs
    • Winged and Non-Winged Options
    • Single or Dual Springs to fit your weight requirements
  • Optional 15P19 HD Take Out Clip to ease sash removal