Wall Returns *Designed to be used on With Nailing Flange windows or Without Nailing Flange windows when the existing w indow sash and w indow frame w ill be removed completely. Cannot be used w ith a Head Expander. Wall Returns make it easy to add your own extension jambs. They are an alternative to ordering factory applied extension jambs. Wall returns are a U-shaped channel, factory applied to the window frame. Choose the width of the Wall Return based on the material you plan to use. For example, if you plan to use ½” drywall, choose ½” wall returns. If you plan to use ¾” thick wood, choose ¾” wall returns. Wall returns before extension jambs are installed. After Extension jambs are installed. 15 PRIVILEGED AND CONFIDENTIAL Head Expander *Designed for use on Without Nailing Flange units when installing into an existing w i n d ow f r a m e ( s o m e t i m e s c a l l e d p o c k e t i n s t a l l ) . C a n n o t b e u s e d w i t h W a l l R e t u r n s . The Head Expander is an optional accessory for Without Nailing Flange windows. It can placed on top of a Without Nailing Flange unit before install, and can help correct a head jamb that is out of level on the existing window frame, and can also provide up too ½” of extra height on the unit if needed. The image to the left shows the head expander placed on the head of the window. There is a gap in-between the existing window’s frame and the top of new window. The image on the right shows how the Head Expander would be raised to cover this gap. 16 PRIVILEGED AND CONFIDENTIAL