Purpose-cut from high-temperature Robax ceramic glass, the Graphite 5 (GR905)902 (HF5902) Stove Glass is the correct replacement for Hi-Flame Graphite 5902 owners. The glass is rated to handle sustained high heat and fits precisely into the door frame. Fitting it yourself is a simple job that brings the stove back to full working condition. This is a genuine Hi-Flame spare, not a generic substitute.