Installation Guide
11
1. Prepare the Bracket – Install Video Time 1:48
The spring push pin on the left 
extension arm will utilize the holes on 
the right side of the center bracket for 
22”-26” wide windows.
NOTE
Remove the top foam insert containing the bracket and hardware from the carton.
A.  Measure the inside opening of your window sill and 
use that distance to set the total width of the bracket 
Extension Arms. To adjust the extension arms, press 
the Spring Push Pin, slide the Left Extension Arm out 
and then install the Right Extension Arm. Use the short 
arm for 22-26” windows, and the long arm for 26-36” 
windows.
B.  Place bracket on window sill to make sure you have 
measured and aligned the bracket arms correctly.
C.  Once your bracket arms are properly calibrated, apply 
bracket sealing foam strips to the bottom of the bracket 
as shown, based on your window type.
Fig. 3
Fig. 1
Horizontal Bracket
Spring Push Pin
Angled Support Arms
Righ
Extension
Arm 
Rear Cross
Brace 
Main Support
Left 
Extension
Arm 
Fig. 2
Center
Adjust
Adjust
Foam
Vinyl Type Windows with a Lipped Sill
Wooden Type Windows with a Flat Sill










