GE APFD05 Owner's Manual And Installation Instructions page 10

Installation Instructions
Window Panel Combinations to fit window openings
(Appearance may vary)
Window Opening 20"
Center Panel Only
Window Opening 20"- 23 1/2"
Center Panel + 5 1/2" Extension
Window Opening 23 1/2"- 27"
Center Panel + 9" Extension
Window Opening 23 1/2"- 30 1/2"
Center Panel + 9" and 5 1/2" Extensions
Window Opening 30 1/2" - 34"
Center Panel + 16" Extension
Window Opening 34"- 41"
Center Panel + 9" and 16" Extensions
Window Opening 41"- 48"
Center Panel + (2) 16" Extensions
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