Transforming wood fire cleanup into something simple and painless, the ASH DUMP DOOR is the answer to your ash disposal needs. This dump door can be easily installed into your wood burning fireplace, and the durable cast iron construction won’t degrade over time. Because of their location, ash dumps are general exposed to large amounts of intense heat, meaning that a lower quality product will degrade quickly; the ASH DUMP DOOR is built to withstand this kind of exposure, with a solid cast iron construction that can withstand these temperatures. Requires no maintenance between uses. NOTE: Fits into a 4.5 inch x 9 inch opening.