LG LP1214GXR - Manual (Page 18)

Cut the adhesive foam seal A and C strips to
the proper lengths, and attach them to the
window sash and frame as shown.
Cut the non-adhesive foam seal B strip to
match the width of the window. Insert the seal
between the glass and the window frame to
prevent air and insects from getting into the
room.
If desired, install the security bracket with a
type B screw as shown.
18" and 50" (46cm and 127 cm)