| • |
Double knockout header track |
| • |
E-lift adjustable CounterWeight™ system |
| • |
Single pane or thermal pane window |
| • |
Stainless steel hardware |
| • |
Power operation or manual chain hoist |
| • |
Anti-drift up lock |
| • |
Anti-drift down lock |
| Note: Option availability varies by application. |
