The Dimplex DFI23TRIMX is exandable.  It telescopes in height and width to fit a variety of fireplace openings and is a perfect accessory for the DFI2309 or DFI210 Dimplex Electric Fireplace Inserts.  It can also be used on practically any other fireplace as well that is in need of dressing up or a nice looking firescreen, spark arrestor.

Expands, with a telescoping frame, from 19.5" to 28.5" Tall and from 24.5" to 43" Wide.  Fits most fireplaces!  Frame, screen and mounting hardware included.  Really helps complete the real fireplace look!